baber/WOPTO huggingface dataset:
Patent GB-1138442-A (GB)
Title: Improvements in and relating to material feed mechanisms for seed drills or like machines
IPC: A01C7/12
Filed: 1966-01-05
Abstract: 1,138,442. Seed or the like distributing machines. P. NORDSTEN A.S. 5 Jan., 1966 [19 Jan., 1965], No. 408/66. Heading A1D. A material feed mechanism for a seed drill or like machine of the type comprising a feed box 1, adapted to be connected to a hopper of a drill or like machine, and a displaceable sowing wheel (not shown), the feed box having a semi-cylindrical chamber 2 which is open at its top and which includes at its bottom a discharge opening and two side walls, and the sowing wheel being in the form of a drum toothed over part of its length and being received within the chamber such that the part of the discharge opening covered by the non- toothed portion is closed and the part covered by the toothed portion is open includes adjacent one of the side walls a groove 18 into which a blocking ring (not shown) is fitted, the ring having notches slidably engaging the toothed portion of the sowing wheel. The feed box is of an integral construction and the groove is substantially U-shaped so that the ring can be introduced into the groove from the mouth of the U and in its final position is embraced on its downward facing part only by a semi-circular portion of the groove. A guide plate (20) (Fig. 2, not shown) may be provided for directing the flow of seed or like. The sowing wheel is driven via gearing by a ground engaging wheel.
Patent GB-1482322-A (GB)
Title: Low-combustibility bitumen compositions
IPC: C08L95/00
Filed: 1975-01-06
Abstract: 1482322 Flame-proof coatings CHEMISCHE FABRIK KALK GmbH 6 Jan 1975 [9 Jan 1974] 421/75 Heading B2E [Also in Divisions C3 and Dl] Substrates are coated with a low combustibility bitumen composition which contains, as flame-proofing components 2-15% by weight of an organic bromine compound with a melting point below 200‹C, 2-15% by weight of an organic phosphorus compound, and 2-20% by weight of cold waterinsoluble starch, all percentages being based on the weight of the composition without the flame-proofing constituents. The substrate may be cellulose pasteboard, asbestos pasteboard, paper, jute fabrics, glass-wool fabrics and fleece materials of nautural or synthetic fibres. The composition may be applied to the substrate as a melt. In the specific Examples a composition containing 2, 2-bis-(4-hydroxy-3, 5-dibromophenyl)-propane and triphenyl phosphate is applied to a fleece of polyester fibres (6); a glass-wool fabric (7); jute fabric (8); paper (9); cellulose pasteboard (10); and asbestos (11). In the succeeding Examples the same substrates are coated with compositions containing:- diphenyl brominated on average nine times and triphenyl phosphate (12-17); diphenyl ether brominated on average eight times and triphenyl phosphate (18-23); 2, 2- bis-(4-hydroxy-3, 5-dibromophenyl)-propane and triphenyl phosphinic oxide (24-29); diphenyl brominated on average nine times, triphenyl phosphinic oxide (30-35); diphenyl ether brominated on average eight times and triphenyl phosphinic oxide (36-41); tribromophenyl-dibromopropyl ether and triphenyl phosphate (42-47); tribromophenyl-dibromopropyl ether and triphenyl phosphinic oxide (48-53); tribromophenyl allyl ether and triphenyl phosphate (54-59); and tetrabromophenyl allyl ether and triphenyl phosphinic oxide (60-65). Examples 4 and 5 describe coating a polyamide fleece with compositions containing either 2, 2-bis-(4-hydroxy-3, 5-dibromophenyl)-propane and triphenyl phosphate or diphenyl ether brominated on average eight times and triphenyl phosphinic oxide. The coatings may also be applied to substrates which themselves have already been rendered flame-proof, e.g. flame-proofed paste-boards and papers.
Patent GB-1179836-A (GB)
Title: Improvements in and relating to the production of gallium arsenide films
Inventor: HOLLOWAY HENRY
IPC: C30B25/08
Filed: 1968-01-03
Abstract: 1,179,836. Gallium arsenide films. PHILCOFORD CORP. 3 Jan., 1968 [3 Jan., 1967], No. 459/68. Heading C1A. An epitaxial film of gallium arsenide is grown on a germanium substrate by exposing the substrate which is heated to 730-780‹ C. and which has the exposed crystal surface oriented between (100) and (111) crystal planes, to a gaseous mixture including arsenic in vapour form but not gallium, for at least 2 minutes, and subsequently exposing the substrate to a gaseous mixture including arsenic and gallium containing vapours. In the example, hydrogen is bubbled through arsenic trichloride soln. and the gases are passed over the substrate for 2 minutes, then gallium containing arsenic is introduced into the apparatus upstream of the substrate whereon the gallium vaporizes and reacts with the incoming vapours to produce gallium trichloride. This leads to an exothermic reaction on the substrate forming gallium arsenide.
Patent GB-249249-A (GB)
Title: Improvements relating to electrical switch gear
IPC: H02B13/02
Filed: 1925-01-07
Abstract: 249,249. Davies, D. R., and Metropolitan-Vickers Electrical Go., Ltd. Jan. 7, 1925. Sliding switch-carriage arrangements; oil switches.-Switch gear for connecting a feeder to either or both of two bus-bars comprises the combination in one oil tank of a fixed contact 5 connected to the feeder or to a feeder contact 2, a bridge 7 adapted to connect the contact 5 to a fixed contact 6, two contacts 8, 9 connected to the bus-bars or to bus-bar contacts 3, 4 and switching means for connecting one or both of the contacts 8, 9 with the contact 6. The figure shows switch gear of the draw-out type, the contacts 2, 3, 4 being adapted to be moved into engagement with contacts connected to the feeders and bus-bars. An operating lever 19 connected to the contacts 8, 9 by pinions 16, 17, a chain 18, and racks 13, 14, causes the contact 9 to descend into engagement with the contact 6 simultaneously with the rising out of engagement of the contact 8 and vice versa. In a modification, leads from the contacts 3, 4 proceed to fixed contacts through which pass plunger contacts which are simultaneously raised and depressed by the operation of one handle operating through linkage mechanism and in a further modification plunger contacts 8, 9 similar to those shown in the figure have separate operating levers so as to be independently movable. The Provisional Specification describes a construction in which contacts connected to the bus-bars are adjustable so that one or other or both of them are engaged by a bridging-member which engages a contact connected to the feeder.
Patent GB-994423-A (GB)
Title: Fluid-pressure servo-motor systems
Inventor: HICKS JOHN DAVID GLYN
IPC: F15B9/17
Filed: 1961-01-05
Abstract: 994,423. Fluid-pressure servomotor systems. DOWTY ROTAL Ltd. Jan. 1,1962 [Jan. 5, 1961], No. 539/61. Heading G3P. A spring-centered spool valve 20, slidable in a bore 20, embodies lands 22, 23,24 which form chambers 18, 19, 27, 28, the bore having conduits 15, 16, 17, 29, 30, 43, 44 opening thereinto. Conduits 29, 30 lead from chambers 27, 28 to either side of a double-acting piston 33, whilst the conduit 17, connected to a supply source, is closed by land 23 when the valve 20 is central; conduit 17 branches to join conduits 15, 16 via the end chambers 18, 19, and drain conduits 43, 44 are also closed when the valve 20 is central. The ends of conduits 15, 16 remote from the conduit 17 are provided with opposed nozzles 12, 13 between which is a flapper 11 constituting the armature of an electromagnetically-operated signal-input unit 10 whereby the differential-pressure across chambers 18, 19, and hence the position of the valve 20 and the piston 33, is determined. The rod 35 of piston 33 is extended at both sides thereof, one rod end being connected to a device e.g. an aircraft control surface, and the other end incorporating a pair of centering springs 40, 41, which, together with an orifice 42 through the piston 42, ensures that the latter is returned to the central position, shown, should the central apparatus fail in such a way as to produce a high pressure on either side of the piston. The springs 40,41 may be pre-loaded.
Patent GB-471800-A (GB)
Title: Improvements in or relating to electron discharge apparatus
IPC: H01J43/22
Filed: 1936-01-08
Abstract: 471,800. Electron multipliers. WEISS, G. Jan. 8, 1936, Nos. 633, 634, and 636. Convention dates, Jan. 8, 1935, Feb. 1, 1935, and May 24, 1935. [Class 39 (i)] A multiplier comprises a cathode, a collecting anode, and a plurality of secondary emission electrodes which are pervious to an electron stream and are arranged in the path of the stream from cathode to anode. In one form, a number of thin metal grid or mesh electrodes, e.g. of silver, coated with caesium or other alkaline metal, are disposed between a cathode which may be photo-electric or thermionic, and a collecting electrode. In a modification, Fig. 2, the plate electrode 3 is secondary emitting and the electrode 1 is the collector. A number of parallel annular or rectangular mesh electrodes may be arranged above and at the side or centrally with respect to a photoelectric cathode and may be heated to increase their emission. A solenoid may concentrate the beam, and electrostatic or magnetic focusing means may project electron images from the cathode and secondary emitting electrodes onto succeeding electrodes. In another form, Fig. 8, a photo-electric cathode 2 may be arranged in a bottle-shaped tube 7, in the neck of which are arranged the secondary emitting electrodes 1, 101, 111, 121 and the collector 3. The Specification as open to inspection under Sect. 91 describes also the arrangement shown in Fig. 7 (Cancelled), wherein electron beams are accelerated by grids 4, 104, 114, 124 and impinge upon secondary emission electrodes 5, 105, 115, 125 and a collector electrode 3, and states that the secondary-emitting electrodes may be pervious foils. The Specification includes also the subject-matter of Specification 468,665. This does not appear in the Specification as accepted.
Patent GB-1448961-A (GB)
Title: Preparation of n-tertiaryaminoalkyl-acrylamides
IPC: C07D295/13
Filed: 1975-01-07
Abstract: 1448961 N-(Tertiaryaminoalkyl)acrylamides JEFFERSON CHEMICAL CO Inc 7 Jan 1975 [25 Jan 1974] 676/75 Heading C2C A process for the preparation of N-(tertiaryaminoalkyl)acrylamides of the formula wherein R 1  is H or methyl; n is an integer from 2 to 6; and R 2  and R 3 , taken singly are C 1 -C 4  alkyl groups or R 2  and R 3 , taken jointly are combined with the N<SP>1</SP> atom to form a heterocyclic group selected from the group consisting of morphline, pyrrolidine and piperidine ring groups comprises: subjecting a #-aminopropionamide of the formula to a temperature of 180‹ to 300‹ C. in the absence of a catalyst; and separating the resultant product N - (tertiaryaminoalkyl)- acrylamide compound. Heating may be effected in the presence of a polymerization inhibitor. The compounds of Formula II may be made by reacting at least two moles of a tertiary aminoalkyl amine of formula with an acrylic acid or ester of formula where Z is H, methyl or ethyl.
Patent GB-241425-A (GB)
Title: Improvements in or relating to motor car radiators
IPC: F28D1/053
Filed: 1925-01-09
Abstract: 241,425. Gould, W. G. Jan. 9, 1925. Radiators, motor-car and like.-A louvre device for regulating the flow of air comprises two groups of vertical louvres p mounted in a cast or stamped frame formed in two parts a<1>, a<2> secured together at b, b<1> by bolts or screws, the groups of louvres being moved simultaneously in opposite directions by a knob i, Fig. 9, carried by a bolt g supporting a pinion l engaging racks carried by horizontal actuating-bars s, s<1>, Fig. 3. The louvre strips p have struck-out lugs q engaging holes in the bars s, s<1> for actuation. These lugs may be directed alternately upwards and downwards. The outer ends of the bars s, s<1> are curved and supported in slotted brackets v, v<1> on the frame, while their inner ends are forked, one branch of each fork haying teeth to engage the pinion and the opposite branch serving to support the toothed part of the other bar. The pinion l is mounted between discs k<1>, Fig. 9, these parts being keyed on a reduced part h of the bolt g. The knob i is fast on the bolt g and is held in a set position by lock-nuts, which are slackened to allow the knob to be rotated for adjusting the louvres. The device is mounted within the radiatior frame in front of the cooling-elements.
Patent GB-1244951-A (GB)
Title: Polycyclic ethers
Inventor: SANDERMANN WILHELM
IPC: C07D307/92
Filed: 1970-01-07
Abstract: 1,244,951. Perfumes. L. GIVAUDAN & CIE S.A. 7 Jan., 1970 [13 Jan., 1969], No. 730/70. Heading A5B. [Also in Division C2] Perfume compositions comprise compounds of the formula where n is 1-8; R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> are H or alkyl of 1-4 carbon atoms or, where n is 2, two of R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> together represent a bridge member, or two of R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> situated on the same carbon atom of the A-ring together form alkylene of 2-5 carbon atoms; R<SP>4</SP> is H or methyl and the broken line denotes an optional bond, while, when such a bond is present, R<SP>1</SP> may also be alkylidene of 1-4 carbon atoms.
Patent GB-104189-A (GB)
Title: Improvements in Wireless Telegraph Transmitters.
Inventor: MARCONI GUGLIELMO
IPC: H03B11/02
Filed: 1916-01-17
Abstract: 104,189. Marconi, G., and Entwistle, W. S. Jan. 17, 1916. Electric oscillations, producing.-A number of condenser discharge circuits are successively excited by a single trigger circuit electro-magnetically coupled to the main circuits. In the arrangement shown, the main discharge circuits D, G, K, H, E, and D<1>, G<1>, K<1>, H<1>, E' are electromagnetically coupled to a trigger circuit d, g, k, c through a transformer having a primary winding e and two secondary windings H, H<1>. The number of studs on the disk g of the trigger circuit is equal to the sum of the number of studs on the disks G, G' of the main circuits. Specification 11371/13, which describes an arrangement by which two or more main circuits are excited by two or more trigger circuits, is referred to.
Patent GB-812888-A (GB)
Title: Bore-hole closure for blasting work
IPC: F42D1/18
Filed: 1958-01-08
Abstract: 812,888. Tamping plugs. FINK, S. and WEICHELT, H. Jan. 8, 1958, No. 748/58. Class 9(1) A conical plug for tamping boreholes has a conical recess 1 at the thicker end opening into an axial passage 2 which is enlarged at the thinner end of the plug to house a ball 3 whose escape is prevented by a transverse pin 4. A second through passage 5 is provided to house the firing lead.
Patent GB-572895-A (GB)
Title: Improved production of cellulose pulp from wood, straw and other fibrous materials
IPC: B02C13/09
Filed: 1943-01-15
Abstract: Pulp for paper, strawboard, papier-mach<\>ae and like products, is obtained from wood, straw, or other fibrous materials, by continuously feeding the fibrous material, with water, into and through a rotary disintegrating machine in which the fibrous material and the water are thrown at a sufficiently high speed against the walls of the machine to break up <PICT:0572895/IV/1> the fibrous material by percussion, without the cellulose fibres being damaged or unduly shortened.  The treated material as it becomes sufficiently reduced is passed out of the machine with the water through a screen or screens.  The fibrous material may be softened by soaking in hot water or in a caustic soda solution or other softening liquid before being introduced into the disintegrator.  The material may be passed more than once through the disintegrator.  When sufficiently reduced, it may be discharged on to a filter of wire gauze to drain off water and sludge.  The pulp may be boiled in a solution of caustic soda to remove lignin.  As shown, water under pressure is supplied to the beater chamber through jet manifolds 1, 2.  The material to be disintegrated is fed through the hopper 12.  Beater arms 14 within the beater chamber are rotated at a peripheral speed of about 8,000 to 20,000 feet per minute according to the nature of the material being handled.  The peripheral wall of the upper part of the chamber may be sawtoothed and the borders of the vertical walls near the periphery may be corrugated.  The disintegrated fibrous material passes through a screen 13.  When wood or other tough material is to be treated, it is preferably passed through a disintegrator in the dry state before it is led into the preliminary caustic soda softening bath.  The strength of caustic soda in this bath may be 1.5-10 per cent.  After the disintegration treatment, the cellulosic material may be treated with a boiling solution of 5 per cent caustic soda.
Patent GB-308845-A (GB)
Title: An improved means of storing fluids
IPC: F16L27/08
Filed: 1928-01-10
Abstract: 308,845. Buchanan, J. W. Jan 10, 1928. Controlling distribution of liquids.-Tanks for liquids are stored beneath the ground and spaced equidistantly in a circle a pivoted, supply duct 11 being disposed at the centre of the circle for filling the tanks. The duct 11 is rotated through gearing from a handle 18 and a pivoted stop 20 registering with apertures in a fixed stop plate 22 indicates and controls the position of the duct over the tank openings which are closed by pivoted flaps 5. Access to the operating chains for the flaps is provided by apertures 7 in the cover plate 2.
Patent GB-1273712-A (GB)
Title: Internal combustion engine fuel systems
Inventor: SEYFARTH ROBERT
IPC: B60K15/035
Filed: 1971-01-07
Abstract: 1,273,712. Venting fuel tanks. GENERAL MOTORS CORP. 7 Jan., 1971 [12 Jan., 1970], No. 785/71. Heading B8X. [Also in Divisions F1 and F2] An I.C. engine fuel system contains a valve 15 for mixing air with vapour from the fuel tank 6, the fuel vapour being supplied by conduit 9 and air by conduit 13 to a passage 22 when valve 32 is opened by fuel vapour pressure acting upon a diaphragm 18. When the engine is running, fuel vapour and air pass to the inlet manifold via conduit 12 and when the engine is not running, fuel vapour passes via passage 22 and conduit 13 to the engine air cleaner (5). Metering orifices (28), (30) and (31) are provided to pass fuel vapour from conduit 9 to passage 22. In another embodiment, Fig. 5 (not shown), separate conduits, (9a) and (9), supply fuel vapour to operate the diaphragm and to mix with air for passing to the manifold.
Patent GB-1599701-A (GB)
Title: Protected documents
IPC: G03G15/22
Filed: 1978-01-10
Abstract: PROTECTION SYSTEM FOR DOCUMENTS of the Invention A system to protect documents such as negotiable instruments, title instruments and identification documents. from illegal copying by color copiers and alteration such as amount or signature particularly computer printout documents comprising preprinting a "VOID" pattern over the amount and/or signature area of the document in solvent insoluble or color change ink.  The VOID is printed with a camouflage pattern overcoating.  The camouflage pattern overcoating may be a pattern or solid coating.  It may be a coating on the undersurface of the Mylar* film overlay of the "VOID.  Thereafter the disclosure contemplates adhering the Mylar*film to the document to be protected over the amount and/or signature area with cold pressure. Color copying by machine is prevented by the use of colors in the inks which are below the critical density of the copier, so as to verify the authenticity of a document and prevent fraudulent use of a copy. *Trademark
Patent GB-539661-A (GB)
Title: Improvements in or relating to thermionic discharge devices
IPC: H01J43/02
Filed: 1940-01-15
Abstract: 539,661. Cathode-ray tubes : modulating apparatus. INTERNATIONAL TELEVISION CORPORATION, Ltd., NAGY, P., and GODDARD, M. J. Jan. 15, 1940, No. 862. [Classes 39 (i) and 40 (v)] A cathode-ray tube for signal transmission is provided with an output anode having a high secondary emission ratio and the anode is so combined with two electrodes, one at a high positive potential and one near cathode potential, that the ray falling or one portion of it provokes a high secondary emission and the anode becomes positive, while if the ray falls on the other portion the emission is checked and the anode becomes negative. The potentials thus pro duced are applied to charge and discharge a capacity such as the grid circuit of an amplifying valve. The anode shown consists of three portions X, Y, Z, the portions Y, Z being screened from the electron gun by a grid W connected to the anode V of the tube and the part X is screened from the grid W by a grid V which is slightly positive with respect to the cathode. The potential of the anode tends to that of the grid V or the grid W as the ray falls on the portion X or on the portion Y, Z, but the potential actually attained depends on the time during which the ray falls on the portions in question, and therefore on the frequency of an alternating potential applied to the deflecting plates P 1  or P 3 , the value of such potential and the mean position of the ray. The consequences of this are discussed with reference to signal transmission by means of a carrier potential applied to one of the pairs of plates P 1 , P 3  and a signal potential applied to the other. The potentials produced at the anode are applied to the grid E of valve H. The cathode C is an elongated filament and the ray in the form of a flat beam. The anode is shaped to compensate for various causes of distortion which are discussed. Several parallel cathodes forming parallel beams may be employed. Fig. 2a shows an anode for use with such an arrangement of cathodes. In this case the grid V may be dispensed with, the electrons from the portion X being trapped by the portions Y, Z. To reduce the length of the tube the beam may be caused to take a helical path by a magnetic field.
Patent GB-490896-A (GB)
Title: Improvements in packings for photographic films
IPC: G03B17/34
Filed: 1938-01-11
Abstract: 490,896. Photographic film packing ; exposure meters. KROTOSCHINER, H. Jan. 11, 1938, Nos. 869, 870, and 871. Convention dates, Jan. 11, 1937, Jan. 27, 1937, and March 25, 1936. [Class 98 (i)] A packing for photographic films comprises at least two relatively movable parts bearing photographic exposure data. In Fig. 1, the body 1 and cover 2 have scales 3, 5 with indices 4, 6 to obtain readings of shutter speeds, stop apertures or the like. Additional data may be marked on a scale 8 visible through an aperture 7, and on a scale 10 on the cover, co-operating with a hand 11. In place of the scale 8 a light-sensitive substance may be used to obtain exposure time. Similar scales may be provided on a folded carton and on a slide cooperating with it, Figs. 3, 4, 9 and 10 (not shown). In a packing of the kind shown in Fig. 1, the body and lid may be provided with interengaging teeth to lock the parts in adjusted position. In another modification, Fig. 8 (not shown), an aperture in the bottom of the packing may be covered by a grey-wedge which is utilized in ascertaining the required data. In Fig. 11 (not shown), a cylindrical packing is provided with a scale co-operating with scales on a slidable and rotatable ring, which may be transparent. In Fig. 12, a folded carton is surrounded by a slidable ring 35 having a flap 36, window 37, and slots 38. The required data are obtained by co-operation of the table 43 with the scales 39, 41, some of the data being added by sliding the ring if required. The collapsed carton may be attached to a camera.