baber/WOPTO huggingface dataset:
Patent GB-486496-A (GB)
Title: Improvements in the production of multi-colour photographic pictures
IPC: G03C7/30
Filed: 1936-10-28
Abstract: 486,496. Colour photography. GROVES, W. W. (I. G. Farbenindustrie Akt.-Ges.) Oct. 28, 1936, No. 12464 /38. Divided out of 486,424. [Class 98 (ii)] A multi-colour material has several superimposed and differently sensitized layers, and is subjected after exposure to a first development common to all the layers, the developed silver removed, e.g. in a bichromate-sulphuric acid bath, and the material given a second exposure to light of a spectral region for which only one of the layers is sensitized, and developed. This component is copied on to an auxiliary film, the silver again removed and a second layer subjected to a selected second exposure with light corresponding to its sensitivity and developed. The procedure is repeated for the remaining layers. In an example, the rear film of a bipack has two superimposed layers sensitized to green and red respectively, and the selective second exposures are made to light of these colours. In another example, the front film has blue sensitive and green sensitive layers separated by a yellow filter layer which is removed by washing, the second exposures being to green light and daylight respectively. The process is also applicable to four-colour bipack films, to films having three superimposed layers and to multilayer films containing either lenticular or colour screens. Suitable sensitizers are described in Specifications 386,791 and 400,951, and after the first development, the sensitivity of the remaining silver halide may be increased by treatment with a sulphite. The last component picture may be produced without a second exposure by chemical conversion or toning or dyeing of the silver halide still present.
Patent GB-124692-A (GB)
IPC: G06C7/10
Abstract: 124,692. Wade, H., (Burroughs Adding Machine Co.). Jan. 2, 1918. Adding-apparatus; selecting denomination. - Relates to key-set, independently operated machines of the single-bank type having stop field comprising series of denominational stop pins, mounted in a laterally and intermittingly moving carriage, the stops being adapted to be set to represent an item, by successive depression of the keys, and then to limit the subsequent upward movement of type-bearing rack bars, and consists in the provision of means for locking the stop pins in the set position, the pins being adapted to take up one of three positions as described in Specification 124,538. An indicator is provided to show the position of the stop field together with an escapement device for controlling the movement thereof. The stop carriage moves under the influence of a spring 40 to the right as shown in Fig. 3, and carries a rack 20 adapted to be engaged by a sliding bar 41, Fig. 4, provided with a notch adapted to straddle the rack. Pivoted to ears on the sliding bar is a spring-controlled lever 42 which engages and holds the rack when the bar 41 is in the position shown in Fig. 4. On the depression of an item key the bar 41 is moved to the left through levers 44, 45 and a universal bar 46 engaged by all the keys, a bevelled portion 41<a> of the bar thus being moved into, and the lever 42 out of, engagement with the rack. A spring 42<a> moves the lever 42 from the position shown in Fig. 5 to that shown in Fig. 6 so that, on the return of the bar 41 by spring-controlled members 48, 49, the stop carriage moves a step forward. The locking means for the stop pins 23 comprises a series of tines 50<a>, formed on a stationary plate 50 carried by the casing, intc engagement with which notches 23<d> in the stop pins are brought as the stop carriage moves. The position of the carriage is shown 'by a scale 700, Fig. 9, over which moves a pointer carrier by an arm 701, the arm being operated by toothed sectors 702, 703 from an arm 707 connected by a link 708 to the stop carriage. Controlling indication and printing of zeros.- Movement beyond the zero position of the rack bars 15 to the left of the item is prevented by fingers 17f carried by the stop carriage engaging projections 15<c> on the rack bars.
Patent GB-574938-A (GB)
Title: Improvements in and relating to machine tools for metal turning and the like
IPC: B23B3/00
Filed: 1942-09-03
Abstract: 574,938. Lathes. LONGLEY, H. J. Sept. 3, 1942, No. 12489. Convention date, Dec. 20, 1941. [Class 83 (iii)] A lathe has the headstock 2 mounted on a base-plate 1 while the tool carrier 8 swings about a fixed axis B, B parallel to the work axis to move the tool or tools radially into the work 11 and is also moved along said axis to impart traversing movement to the tool or tools by means which are also adapted to swing about said axis. The tool carrier is pivoted on a shaft 6 which may either be fixed to or rotatable in bearings 7. The member 8 is of roughly triangular form and where the shaft 6 is stationary the tool-carrier has spaced bearings 22 on said shaft. The front of the carrier is supported on a screw 13, the head of which coacts with a machined surface 24. The member 8 carries an upper tool 9 secured by screws 28 and a lower tool 10, these tools being brought selectively into operation by rotation of the screw .13 by, a hand wheel 12. The cutting- edges are approximately in a vertical plane passing through the work axis and the tools lie approximately along the line of thrust so that bending moments on the tools are minimised. For traversing the tools, a member 16 is mounted by pins 1'8 to swing about the shaft 6 and is provided with a hand screw 15 engaging a nut 19 on the member 8 which can thus be fed longitudinally along the shaft 6. For copying, the member 8 carries a pointer coacting with a fixed former to control the radial position of the tools during the traverse. The upper tool 9 is fed to the work by gravity and this force may be increased if necessary by spring or other loading of the member 8. In a modification, Fig. 5, the shaft 6 supports the bearing portions 30 of a second swinging member 29 which pai takes of the longitudinal movement of the member 8. The front end 31 of this member rests on the member 8, but may be swung upwardly to an inoperative position when not required. The part 31 may carry a drill for drilling the work along its axis A, A. In another modification, Fig. 7, the member 8 has secured thereto pins 6a moving in bearings 7a and the feed member 16 swings on extensions of these pins. A tailstock may be mounted on the machine base at 33.
Patent GB-1293635-A (GB)
Title: Hydrogenation
IPC: C10G47/24
Filed: 1970-03-16
Abstract: 1293635 Catalytic hydroconversion HYDROCARBON RESEARCH Inc 16 March 1970 [19 March 1969] 12575/70 Heading C5E A residuum having an asphaltene content of at least 5% and containing at least 25 vol. per cent of material boiling above 975‹ F. is catalytically hydroconverted in the liquid phase at a temperature between 600 and 900‹ F. and a pressure between 500 and 5000 p.s.i.g. in the presence of 20-70% by volume (based on the residuum), of a hydrocarbon diluent having a gravity less than 16‹ API, a Watson characterization factor less than 11À2 and a boiling-point in the range 700-1000‹ F. The residuum is passed up a fluidized catalyst bed 20 under liquid level 24 in reactor 18 together with the diluent and hydrogen gas. The converted products and gas from the vapour space 26 are separated in separator 30, and cooled and fractionally distilled in 42 to produce the fractions shown in Fig. 1. The liquid from the reaction zone is trapped in tray 51 and fractionally distilled in 58 to give fractions as shown. Suitable residua are petroleum atmospheric and vacuum distillation bottoms, shale oil and residues, tar sands, bitumen, coal derived hydrocarbon residues, or deasphalter bottoms. The catalyst is particulate (1/32 to # inch) alumina or silica/alumina, and is activated by a metal and/or a metal oxide, suitable metals being Cr, Mo, W, Mn, Fe, Co, Ni, Pd, Pt. The hydrogen partial pressure is 65 to 95% and rate between 1000 and 10,000 SCF/bbl. with a liquid space velocity of 0À2-0À5 Vf/hr./Vr, wherein the catalyst is expanded between 10 and 300% over its settled volume and kept in random motion in the liquid. Suitable diluents are decant oil from a fluid catalytic cracker, syntower bottoms from Thermofor cat-cracking processes, heavy coker gas oil, heavy cycle oil from cracking or anthracene oil from coal distillation. There may be more than one reaction zone wherein only the liquid products from each reaction zone except the last are passed on to the next subsequent reaction zone.
Patent GB-1428620-A (GB)
Title: Process for the preparation of 1-aminoanthraquinone 1,5- diaminoanthraquinone and 1,8-diaminoanthraquinone
IPC: C07C225/34
Filed: 1974-03-21
Abstract: 1428620 Preparing aminoanthraquinones BAYER AG 21 March 1974 [22 March 1973 14 June 1973] 12584/74 Heading C4P 1-Amino, 1,5-diamino- and 1,8-diaminoanthraquinones, and mixtures thereof, are prepared by reacting at elevated temperature and pressure the corresponding nitroanthraquinone with ammonia in an ether, an aliphatic or cycloaliphatic hydrocarbon or an optionally alkyl-substituted aromatic hydrocarbon or a mixture thereof. The reaction preferably takes place at 100-220‹ C. using a molar ratio of ammonia to 1-nitroanthraquinone of at least 2 : 1, e.g. 10 : 1 to 40 : 1, or of ammonia to 1,5- and/or 1,8-dinitroanthraquinone of at least 4 : 1, e.g. 10 : 1 to 80 : 1. The pressure is preferably not less than 20 atmospheres. The process may be used to prepare pure 1- aminoanthraquinone from mixtures of 1- and 2-nitroanthraquinones, the latter remaining unreacted.
Patent GB-143710-A (GB)
Title: Improvements in or relating to dredger buckets
IPC: E02F3/14
Filed: 1919-05-19
Abstract: 143,710. Sibbett, G. E., and Hopfield, L. D. May 19, 1919. Endless-chain machines. -In an endless-chain dredger, each bucket 1 has a cutting-lip 5 provided with a central flange 6 engaging the outside of the bucket and end flanges 8 engaging the inside of the bucket the lip being secured by rivets 10, 7.
Patent GB-605715-A (GB)
Title: Detector for angular velocity modulated waves
IPC: H03D3/32
Filed: 1945-05-18
Abstract: 605,715. Frequency modulation circuits for cathode-ray tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 18, 1945, No. 12611. Convention date, May 20, 1944. [Classes 40 (v) and 40 (vi)] [Also in Group XL (a)] A detector for angular velocity-modulated carrier waves comprises a demodulator valve of the beam type having an output electrode provided with at least two areas of different secondary emissivities, means for deriving a pair of rectified voltages of equal magnitude when the frequency of the receiver wave has a predetermined value, means for variably sweeping the electron beam across the two emission areas in response to inequalities in the derived voltages, and means for obtaining a signal voltage from the output electrode. A beamtype demodulator valve, Fig. 1, has deflection plates 1, 2 provided with flanges 7, 8, which co-operate with the cathode 1<1> to form diodes, a control grid 4, screen 5 and target 6. The target is of high secondary electron emissivity with an area 6<1> of low emissivity formed on the inner surface. A frequency discriminator, Fig. 2, comprises coupled in-tune circuits L1, C1, L2, C2 fed from a non-limiting I.F. amplifier V1. The output terminals of secondary circuit L2, C2 are connected to deflection plates 2, 3 of beam valve 1, the common point of the load resistances R1, R2 of diodes 1<1>, 7 and 11, 8 being earthed. The D.C. voltages appearing at the deflection plates 2, 3 have relative magnitudes varying with the frequency deviation, thus the primary electron beam is swept across target 6 in accordance with the frequency variations. The potential of target 6 varies with the number of secondary electrons emitted, and as the beam is swept across the low emission area 61 the signal voltage is developed across resistance 16. Target 6 may be earthed or connected to an H.T. supply of lower voltage than that applied to screen 5, which also acts as a collector for the secondary electrons. The LF. voltage is applied through condenser C3 to control grid 4, to provide an automatic bias voltage across resistance R3 to render the intensity of the electron beam independent of amplitude variations and to provide an A.V.C. voltage. In a modification, Fig. 3 (not shown), the beam valve has two separate diode anodes and a beam-forming plate between the deflection plates and the cathode. The diode, anodes are connected to the deflection plates through LF. filter networks and the control grid is mounted between the cathode and the beam-forming plate.
Patent GB-1030316-A (GB)
Title: Rotary internal combustion engine
IPC: F02B53/00
Filed: 1963-03-29
Abstract: 1,030,316. Rotary engines. J. U. KELERMAN. March 29, 1963, No. 12656/63. Heading F1F.  A rotary internal combustion engine, Fig. 4 (not shown) has a compression unit X driven by the output shaft 24 of a combustion unit Y disposed in end-to-end relationship and supplied with compressed air-fuel mixture by the unit X through a transfer port 33 in a partition 14 between the two units. The compression unit comprises a main cylinder 10 having end walls 11, 12 provided with circular recesses 31, 32 disposed eccentrically to the shaft 24 and providing a guide for a hollow cylindrical sleeve 27 having a longitudinally extending slot 29 therein through which a vane 26 joined to the shaft 24 extends to contact the inner surface of the main cylinder 10. The combustion unit Y is of similar construction to the compression unit X and has a main cylinder 13, circular recesses 44, 45, a sleeve 38 and a vane 36. Air/fuel mixture is admitted to the compression cylinder 10 through an aperture 34 in the end wall 11 which communicates with the interior of the cylindrical compression sleeve 27. The vane 26 is in sealing contact with the convex edge 90 of the slot 29 of the sleeve 27 so that rotation of the shaft and the vane 26 secured thereto causes the sleeve 27 to rotate against the restraining action of a curved member urged by springs against the periphery of the sleeve and located in an outwardly bulging portion 28 of the cylinder 10. At a predetermined time in the cycle a slot 41 in a ring 42 associated with the sleeve 38 registers with the transfer port 33 to allow the compressed mixture to pass into the combustion cylinder 13. A sparking plug 50 energized by a mechanism operated by a cam 65 mounted on the shaft 24 ignites the mixture to thereby cause rotation of the vane 36 and shaft 24. The products of combustion are exhausted through a pipe 133. A fan driven independently or by the engine supplies air to an opening 126 to continuously cool the exterior and intermittently cool the interior of the cylinder 13. The vanes 26, 36, Figs. 9-10 (not shown) are provided with splines 156 angled with respect to the sides thereof and interengaged by complementary splines on radially slidable plates 151 arranged to seal against the cylinders 10, 13. The slot 41 is provided with a perforated cover member 43 which causes turbulence of the mixture entering the combustion unit through the transfer port 33. The shaft 24 is mounted in bearings 20, 21, 23 lubricated by oil supplied thereto through passages 73, 75, 76.
Patent GB-528144-A (GB)
Title: Improvements in or relating to iron-fittings for footwear, and particularly for mountain foot-wear, and processes of making said iron-fitting
IPC: A43C13/06
Filed: 1939-04-28
Abstract: 528,144. Boot &c. protectors; ice grips. TRICOUNI SOC. ANON. April 28, 1939, No. 12755. Convention date, July 25, 1938. [Classes 17 (ii) and 17 (iii)] [Also in Group XXII] A spiked plate for mountain footwear comprises toothed plate 10 of a metal which can be hardened by chilling brazed on to a plate 9 adapted to be nailed to the sole of the boot and made of a metal which cannot be so hardened. On the plate 10, which is formed with projections 11, is placed the plate 9 formed with holes for the reception of the projections 11 and with one or more holes 12 for the reception of a piece of hard solder 13 together with the necessary flux. The assembly is then heated to red heat, the solder melted by further local heating by a blowpipe so as to effect the brazing and the assembly is then dropped into water or oil to harden the plate 10.
Patent GB-578833-A (GB)
Title: Device for play adjustment in a machine bearing
IPC: F16C23/06
Filed: 1945-05-22
Abstract: 578,833. Locking nuts. BECHLER, A. May 22, 1945, No. 12781. Convention date, June 20, 1944. [Class 89 (i)] [Also in Group XXXIV] In a device for play adjustment in a machine bearing, a nut 16, Fig. 1, acts on means for supporting a shaft 11, the nut being rotatable by a ring 18 abutting against the bearing body 10 and provided for fixing the relative position of the nut 16 and the ring 18.
Patent GB-592474-A (GB)
Title: Improvements in or relating to balancing toys
IPC: A63H15/04
Filed: 1945-05-22
Abstract: 592,474. Balancing toys. LARRARD, Y. De., LARRARD, A. De., and LARRARD, J. De. May 22, 1945, No. 12792. Convention date, May 23, 1944. [Class 132 (iii)] A balancing toy comprises a support 4, Fig. 1, ending at its upper end with a flat platform 6, and a figure 1 having a relatively small base A and a transverse balancing arm 2 fixed to the figure, the said arm carrying heavy masses 3 such that the centre of gravity G of the unit is situated beneath the base of the figure, and the said figure being characterised by the fact that the surface of its base is slightly convex and exhibits a number of curvilinear grooves and ribs 7, Fig. 3.
Patent GB-679188-A (GB)
Title: Improvements in or relating to electric hotplates
IPC: H05B3/68
Filed: 1949-05-13
Abstract: 679,188. Electric heating resistances; hotplates. GENERAL ELECTRIC CO., Ltd., and RYCROFT, J. L. May 15, 1950 [May 13, 1949], No. 12857/49. Class 39(iii) A heating element 1 for an electric hotplate for industrial cooking ranges is of the sheathed wire type, having a sheath made otherwise than by casting, is made as a self-supporting bar flat on at least one side to support vessels and has a sheath wall thickness at least in excess of 1/16 inch at all points round its periphery. The elements are rectangular in cross section with rounded corners. The hot-plate comprises several elements mounted side by side on knife edges, or a single element may be bent into a spiral or into a grid with parallel sides. In Fig. 1 U-shaped elements 1 are mounted one within another round a steel block 9 and rest on knife edges 5, the ends of the elements being bent down below a steel hob or coverplate 10 surrounding the elements and protecting the leads 11. Each element is # inch square in cross section and has a steel sheath containing a helical coil packed in magnesia. Specification 587,614 is referred to.
Patent GB-683229-A (GB)
Title: Reciprocatory fuel-injection pumps
Inventor: NICOLLS WILFRED EDWARD WALTER
IPC: F02M59/44
Filed: 1950-05-23
Abstract: 683,229. Fuel-injection pumps. C.A.V.. Ltd. April 30, 1951 [May 23, 1950], No. 12861/50. Class 102 (i). In a multi - cylinder fuel - injection pump whose delivery is adjusted by rotating the plungers b through sleeves g having oblique teeth i in engagement with oblique teeth on a common rack j so that individual adjustment of each plunger may be effected by the axial movement of its sleeve relative to the rack which causes an angular movement of the sleeve and plunger, the axial movement is effected by an internally threaded collar o in engagement with an external thread on the sleeve and supported against a fixed abutment q by a spring n. The collars are accessible upon the removal of a cover r and are rotated by a tool inserted in holes s.
Patent GB-499093-A (GB)
Title: A building material for walls, floors, roofs and the like
IPC: C04B28/04
Filed: 1938-04-29
Abstract: Straw and clay and Portland cement, gypsum or magnesia is moulded to give such products as boards, baulks, sleepers, containers and water tubes.  Iron rods or netting may be used as reinforcement on the surface or inside the material.
Patent GB-514283-A (GB)
Title: Improvements relating to chenille setting looms
IPC: D03D39/00
Filed: 1938-04-30
Abstract: 514,283. Chenille-setting looms. TOMKINSONS, Ltd, and CARTWRIGHT, G. H. April 30, 1938, No. 12943. [Classes 142 (i) and 142 (ii)] The fur weft a, Fig. 1, is delivered over the top of the loom and inserted between the catcher and other warps by means of a carrier c catapulted across the loom on fixed rods d by striker levers e. These are connected by springs e' and controlled by quick drop cams f, f, disposed within the loom frame. After a shot of fur weft has been inserted, a cam g operates a lever g<1> and link g<2> which normally operates the starting lever l, Fig. 4, to stop the loom, by means of a clutch-operating lever m. After setting the fur weft, the weaver restarts the loom by means of one or the other of two pedals k<1> on a stop bar connected to the lever l. When it is desired to weave a length of fabric without pile, the levers e are put out of action by means of catches j and a drop lever i is moved from one position wherein it enables the link g<2> to stop the loom, to another position wherein the link g' does not stop the loom. The jute wefts &c. may be inserted by one, two or more needles n.
Patent GB-528217-A (GB)
Title: Non-resonating transformer
IPC: H01F27/34
Filed: 1939-05-01
Abstract: 528,217. Transformers. PANOV, A. V., and LIPKOVSKY, M. V. May 1, 1939, No. 12948. [Class 38 (ii)] A disc-wound transformer is rendered surgeproof by capacitatively. coupling the coils 1 to a capacity potential divider 2 connected to one end of the winding: The potential divider may be in the form of rings inserted between the coils, or in the form of bands, Fig. 4, surrounding the coils. In each case, guard rings closely surrounding the coils and connected to points on the potential divider may be provided.
Patent GB-350916-A (GB)
Title: Improvements in or relating to tapered sheet metal posts or columns
IPC: E04H12/08
Filed: 1929-12-09
Abstract: 350,916. Posts, columns, &c. DEHN, F. B., 103, Kingsway, London.-(Union Metal Manufacturing Co. ; 1432, Maple Avenue, North East, Canton, Ohio, U.S.A.) Dec. 9, 1929, No. 13002/31. Divided on 350,486, [Group XXII]. [Class 20 (i).] A post or column is constituted by a tapered tube having a length varying between twenty and thirty-two times its base diameter and between thirty-two and eighty times its top diameter. The tube, which is strengthened by flutes and fillets 151, u is formed from a single blank of sheet metal.
Patent GB-1144528-A (GB)
Title: Improvements in or relating to signal registering apparatus for punched tape readers
Inventor: FREEMAN CHARLES PATRICK
Filed: 1967-03-20
Abstract: 1,144,528. Tape readers. MARCONI CO. Ltd. 7 Dec., 1967 [20 March, 1967], No. 13035/67. Heading G4M. Each stage B1-Bn of a register has an associated bi-stable circuit CB1-CBn which is. set if, at any time during a control pulse TP, the associated reader contact Sl-Sn assumes the actuated condition, thereby eliminating the effects of contact bounce. Pulses TP are applied through a normally open gate A and a transistor CT to the bases of all transistors T1-Tn, the emitters of the latter being connected to the respective reader contacts S1-Sn. The states of bi-stable circuits CB are transferred to the register by gates G1-Gn, and the register is reset by gates 1G1-1Gn. Circuits CB are reset by a pulse RP.