baber/WOPTO huggingface dataset:
Patent GB-1429816-A (GB)
Title: Exhaust gas cleaner
IPC: F01N13/02
Filed: 1973-11-23
Abstract: 1429816 Waste gas treatment NISSAN MOTOR CO LTD 23 Nov 1973 [30 Nov 1972] 54531/73 Heading B1W Exhaust gas from an I.C. engine having an exhaust manifold is treated in a system comprising a catalytic converter 44 communicable with the exhaust manifold 36, a thermal reactor 46 communicable with the exhaust manifold and a valve 48, 50 operative to establish communication between the catalytic convert or and the manifold when a selected engine operating parameter is below a predetermined value and to prevent communication between the catalytic convertor and the manifold when the parameter is above the predetermined value. the thermal reactor being in communication with the exhaust manifold at least when the parameter is above the predetermised value. Butterfly valves 48, 50 are mounted on spindle 52 which is rotated by a solenoid 54 against the bias of a spring 53. The solenoid is energised when one or more engine operating conditions such as engine speed or exhaust gas temperature or flow rate exceed a pre-determined level, to close valve 48 and open valve 50 so that exhaust gas is directed through the thermal reactor. Secondary air is supplied to the exhaust manifold by a pump 20 supplied with clean air from the filter 16. The pump delivery pipe 24 leads to a chamber 26c and hence to a nozzle 32 via a check valve 28. The amount of air is regulated by a diaphragm operated valve 26e controlling a port leading to a bypass line 27. The diaphragm is subject to intake manifold pressure through a line 30. In a modification Fig. 2 (not shown) the thermal reactor is upstream of the catalytic reactor so that exhaust gas passes first through the thermal reactor and then through the catalytic reactor when the engine is running light. Under heavy load a valve between the reactors is closed and a second valve in a pipe leading from the thermal reactor to atmosphere is opened.
Patent GB-1214306-A (GB)
Title: Treatment of foamed plastics material
Inventor: CANDEL ALFRED ACHILLE
IPC: B32B27/00
Filed: 1967-12-05
Abstract: 1,214,306. Laminates. A. A. CANDEL. 5 Dec., 1967 [6 Dec., 1966], No. 55168/67. Heading B5N. [Also in Division D1] A method of forming a composite material comprises laminating a sheet of an organic fibrous substance having interstices therein with a sheet of a foamed plastics material, heating the laminate formed and subjecting the heated laminate to pressure to form a homogeneous composite material. The foamed plastics material is preferably polyurethane whilst cellulose wadding is preferably used as the organic fibrous substance, of a thickness in the range 10-30 microns. The laminating may be carried out by any known method, e.g. by melting the surface of the foam and pressing the sheet of organic fibrous substance on to the melted surface. The laminate may be subjected to pressure by passing it between calender rollers or in a press. Thereafter the laminate is heated, preferably to a temperature of 210-250‹ C. and preferably by using a gas flame. If the sheet of the fibrous substance is very thin, the lamination and interpenetration of this material can be carried out simultaneously.
Patent GB-1111500-A (GB)
Title: Process for devolatilizing liquid polymer compositions
IPC: B29C48/76
Filed: 1966-12-09
Abstract: Volatile constituents are separated from a liquid composition containing polymer by feeding the composition to the upper portion of a chamber maintained at a pressure below the vapour pressure of the feed to flash vaporize the volatiles and foam the composition thereby releasing sufficient volatiles to enable a foamed strand of polymer to be concurrently formed freely descending within the chamber without deposition of polymer on the chamber walls, the strand being contacted with the surfaces of a pair of counter-rotating rollers or belts within the chamber and having a nip clearance in excess of that necessary for mechanical clearance and less than the thickness of the strand, the surfaces of the rollers or belts moving, at the zone of contact, with the flow of the strand so as to draw the strand through the nip to mechanically compress the strand to effect a further release of volatiles and convey the devolatilized polymer composition from the chamber.  The polymer composition may be polystyrene dissolved in its monomer.  Figures (not shown) are given of an apparatus for carrying out the above process. missing page 282
Patent GB-1313599-A (GB)
Title: Fluid-flow valve
IPC: G05D16/06
Filed: 1970-11-20
Abstract: 1313599 Valves DANFOSS AS 20 Nov 1970 [27 Nov 1969] 55321/70 Heading F2V A valve, e.g. a thermostatic valve for refrigerating equipment, has a valve member 23 carried by a spindle 6 which is biased by a spring 19. One end 18 of the spring is coiled to engage a screw thread 17 on the spindle, and the other end engages a support 21 in the housing and is fixed against rotation. The arrangement enables the spring to be housed within the valve and the spring force to be set in the factory, e.g. by assembling the spindle through a seat opening 8, the valve member 23 then being assembled and welded to the spindle. Preferably, the spindle has a reduced diameter portion 54 on to which the spring end rides out of engagement with the thread to limit the maximum compression. The valve is actuated by a diaphragm 12 in a chamber connected through a capillary tube 11 to a temperature sensor. The spring may have a hook end engaging in a hole 22.
Patent GB-1299236-A (GB)
Title: A coupling for circular waveguide tubes
IPC: H01P1/04
Filed: 1970-11-23
Abstract: 1299236 Waveguide couplings NIPPON KOKAN KK 23 Nov 1970 [24 Nov 1969] 55672/70 Heading H1W A waveguide coupling affording precise alignment of coupled circular waveguides, comprises a sleeve 3 having oppositely-handed internal screw-threads 3a which engage external threads 11, 12 on the ends of waveguides 1, 2 and threaded rings 6 which extend into the ends of the sleeve 3 and exert axial compression on packing rings 4. Washers 5 are inserted between the rings 6 and packings 4. In a modification (Fig. 3, not shown), the rings 6 are extended axially beyond the flanges 6a. The extensions engage the outer surfaces of the guides 1, 2 and provide additional stiffness.
Patent GB-1379764-A (GB)
Title: Method and device for identifying documents
IPC: G06K7/14
Filed: 1971-12-02
Abstract: 1379764 Card reader NETHERLANDS CENTRAL ORGANISATION FOR APPLIED SCIENTIFIC RESEARCH 2 Dec 1971 [3 Dec 1970] 56030/71 Heading G4M A card reader has a card carrying embossed lines, varying in number to identify the card, carried on a drum 2 past a focused line of light at A, fed from laser source 6 via prism 8 and lens 9. The light beam is arranged at an angle α # 40 degrees to the card normal and is reflected to a detector 11 at an angle # # 35 degrees to the card normal. The detector feeds an electric signal to a circuit 14 (Fig. 2, not shown) containing a threshold circuit, providing a zero output at the minimum value of reflected light, a potentiometer feeding a scale 18, a high band-pass filter and smoothing circuit forming a D.C. value equal to the average value of the detected signals, and a discriminator comparing the outputs of the filter and the smoothing circuit and feeding pulses representing the embossed lines to a counter via a filter. When the counter reaches a required value those cards having lines equal to or greater in number than that value are separated from the other cards.
Patent GB-1132160-A (GB)
Title: Liftable covers for automobile body compartments
Inventor: PHILLIPS VAUGHAN MANSEL
IPC: E05D15/42
Filed: 1966-12-15
Abstract: 1,132,160. Vehicle bonnets or trunk lids. VAUXHALL MOTORS Ltd. 30 Nov., 1967 [15 Dec., 1966], No. 56191/66. Heading B7B. A cover 1 for a body compartment is pivotally mounted on pivots 4 carried by blocks 3 slidable on guides 6, and has downwardly extending brackets 8 connected by links 10 to brackets 12 on the vehicle body. The lid is held in the open position by virtue of the " overcentre " attitude of the links 10.
Patent GB-1120710-A (GB)
Title: Improvements in and relating to display stands
Inventor: REECE GEORGE WILLIAM LESLIE
IPC: A47F7/16
Filed: 1966-12-19
Abstract: 1,120,710. Display stands. C. J. LYTLE (ADVERTISING) Ltd. 19 Dec., 1966, No. 56728/66. Heading A4T. A sample holding frame, e.g. for carpets, comprises two wire frames 1, 9 hinged at 11 and clipping together at 14 so that a sheet sample is clamped between wires 3, 8 and 10, the top wire 4 of one frame having extensions 5 whereby the frames may be hung on a free standing or hanging display stand. A handle 12 is provided and frames 1 and 9 may clip together at top and bottom.
Patent GB-1242033-A (GB)
Title: Analyzer system
IPC: G01R13/32
Filed: 1969-11-20
Abstract: 1,242,033. Photo-metric absorption analysis. UNITED STATES ATOMIC ENERGY COMMISSION. Nov.20, 1969 [Dec.18, 1968], No.56843/69. Heading G1A. In a device for the photo-metric analysis of a plurality of solutions contained in sample cuvettes 17 rotating on the rotor of a centrifuge 2, and in which the transmissivities of the samples are displayed simultaneously on a CRO screen, the time base of the CRO is controlled by pulses supplied by a light source-reflecting spot-photodiode pulse generator 7-9 such that the CRO sweep voltage is reset after each complete revolution of the rotor 2. The rotor speed is monitored by a tachometer 1 whose output is fed to an operational amplifier 4, shunted by a capacitor 5 and an SCR 6 which acts as a gate. In this way each of the successive CRO displays comprises a plot of transmissivity v cuvette number Fig. 3 (not shown).
Patent GB-1301680-A (GB)
IPC: B01J3/04
Filed: 1969-11-20
Abstract: 1301680 Pressure vessels IMPERIAL CHEMICAL INDUSTRIES Ltd 20 Nov 1969 [29 Nov 1968] 56849/69 Heading B1X A pressure vessel which enables circumferential and axial stresses to be withstood separately comprises, in one form, an inner shell A, e.g. of austenitic stainless steel, optionally having corrugations B which co-operate with corrugations C in strakes D of high strength carbon or alloysteel which withstand axial stresses. The strakes may be extended to provide a base stand D'. Circumferential stresses are taken by annular members H which may be shrunk into position. End covers E may be concave, or convex (see Fig. 5, not shown). and are provided with corrugations to cooperate with those of the strakes D if the inner shell A is not corrugated. In a modification Figs. 6, 7 (not shown) the inner shell A comprises two spaced corrosion resisting coaxial titanium shells which are vented to the atmosphere via the lower end closure so that any leaks in the innermost shell can be quickly detected. A discontinuous titanium spacer may be used between the titanium shells for support. The corrugations on the shell A or end covers E are helically or annularly arranged. The annular members H may be washers or rings in which latter case they may be spirally wound. Reference has been directed by the Comptroller to Specification 1,240,762.
Patent GB-1335600-A (GB)
Title: Hinge fitting for a seat with an adjustable backrest portion
IPC: B60N2/225
Filed: 1971-12-10
Abstract: 1335600 Adjustable seats FRITZ KEIPER 10 Dec 1971 [16 July 1971] 57561/71 Heading A4J [Also in Division E2] In a modification of the invention claimed in Specification 1335598 the fixed hinge member 15, secured to the seat portion 11, and the pivotable hinge member 14, secured to the backrest portion 12 are provided with respective internally toothed rings 22, 21 having different dedendum circles and different numbers of teeth. A respective spur gear 24, 23 engages each of the respective toothed rings 22, 21, the addendum circles of the spur gears 24, 23 being smaller by at least one tooth depth than the dedendum circles of the associated rings 22, 21. The spur gears 24, 23, which are fixedly joined together in co-axially aligned arrangement relative to each other on a shaft 25, have a number of teeth which differs at least by one tooth from the number of teeth of the rings 22, 21.
Patent GB-577917-A (GB)
Abstract: 577,917. Ticket-issuing machines. BROCKLEHURST, L. N. March 13, 1944, Nos. 4625 and 6472. [Class 106 (iii)] In a ticket-issuing machine provided with two or more columns of key-selected punches or printing dies and wherein the value of a universal ticket is pre-selected by operating the keys and a subsequent operation is necessary to effect the punching or printing, means are provided to ensure that a ticket can only be printed and issued after a key in each and all of said columns hasbeen actuated. The tickets, which may be fed singly or from a roll, may be blank or preprinted as in Fig. 7, and the cumulative total valve of the fares paid may be automatically registered onan adding machine. The machine comprises two rows of keys 21, 22 corresponding to the values indicated in columns 11, 12 on the ticket so that by punching two or more of said indications any fare between ¢d. and the maximum can be shown, the zero indication of the shillings column 11 being invariably punched for pence fares to ensure a minimum of two punchings per ticket. Depression of the keys causes ratchet teeth 32 on the dies 25 to separate laterally movable bars 28 carried by plates 29, 29a and to latch under these bars so as to prevent upward movement of the dies unless the bars 28 are moved away from the central bar 27. Rigidly connected to each plate 29, 29a is a vertically movable rack 33 normally prevented from descending by two claw levers 37 engaging a cross-head 38. To release these levers 37, both of two pivoted bars 39 must be depressed, necessitating the depression of at least one key in each row. When this release has been effected, the turning of handle 47 lowers the rack 33 and the bars 28 to effect the marking of the ticket by the dies 25, teeth 66 on the plate 29 perforating the ticket at the same time. Immediately the ticket has been marked, the bars 28 are forced apart by wedges 55 and springs 26 withdraw the dies. If an incorrect combination of keys has been selected, release wedges 58 may be operated by a lever 56 to return the dies to normal position. When there is no ticket in the machine, a trip lever 71 falls into a recess in the table 64 and prevents rotation of the feed roller 63. An adding machine 72 is operated by racks on the key plungers 24, engagement of the racks only taking place when the handle 47 is rotated. For successive issue of a number of tickets of the same value, the keys may be restrained from returning past their pre-selected position by providing them with ribs 83, which by a slight turn of the key engage under the casing wall. The tickets may be blank, the machine doing the necessary printing. A combined recording-web 67 of carbon ribbon and copy paper may be provided.
Patent GB-1322449-A (GB)
Title: Handoperated devices for applying plastics materials
IPC: B05C17/005
Filed: 1971-12-14
Abstract: 1322449 Hand coating apparatus DAIMLER-BENZ AG 14 Dec 1971 [15 Dec 1970] 58014/71 Heading B2L [Also in Divisions Fl and F4] A hand coating apparatus for applying molten plastics material to a surface comprises a feed device 12 for rods 19 of plastics, a heater 13 for melting the plastics and an air heater 16 with a nozzle 44 which directs hot air to the point of application of the molten plastics. The feed device 12 comprises two opposed double conical feeding wheels 17, 18 the lower one of which is driven by a pawl and ratchet 24 from a trigger 26. The upper feed wheel is mounted on a pivotable bar 31 and the pressure exerted is provided by a spring 33 and adjusting screw 35. A heating element 37 surrounds the barrel portion 36 of the gun. Air entering an inlet 45 under pressure passes through a double walled heating device 16 and exits through a nozzle 44 to the point of application. In a modification (not shown) the air heating arrangement is located above and inclined towards the barrel 36 and a double heating element 37 is provided.
Patent GB-1209049-A (GB)
Title: Polyurethane-polyureas
Inventor: STRASSEL ALBERT PIERRE
IPC: C08G18/00
Filed: 1967-12-21
Abstract: 1,209,049. Polyurethane - polyurea. UGINE KUHLMANN. 21 Dec., 1967 [26 Dec., 1966], No. 58196/67. Addition to 1,160,042. Headings C3C and C3R. Moulded polyurethane polyureas having a cellular portion with a compact adhering elastomeric skin are prepared by the method according to the parent Specification modified in that the temperature of the mould is at or below 40‹ C., and in which, in order to obtain a thick skin of high density, the quantity of water present in the initial composition is reduced to a proportion of less than 3000 p.p.m. In a typical example a propoxylated and ethoxylated trimethylolpropane, 3,3<SP>1</SP>-dichloro-4,4<SP>1</SP>-diaminodiphenylmethane, lead naphthenate, triethylenediamine, trichloromonofluoromethane and methylene chloride were mixed and to this mixture was added crude tolylene diisocyanate and either 500 or 1000 p.p.m. of water. Foams were obtained having skin thicknesses of 2 to 3 mm.
Patent GB-1155520-A (GB)
Title: One Way Clutch for Timepiece Movement
IPC: G04B11/00
Filed: 1967-12-22
Abstract: 1,155,520. Ratchet gearing. FABRIQUE D'HORLOGERIE CHS TISSOT & FILS S.A. 22 Dec., 1967 [12 Jan., 1967], No. 58521/67. Heading F2Q. [Also in Division G3] A one-way clutch comprises a ratchet wheel 1 formed with teeth 11, each tooth having one edge 11<SP>1</SP> directed along a radius of the wheel and a ratchet ring 2 having similar teeth 21. For one direction of rotation of the wheel 1 the teeth of the wheel and the ring do not mesh together, the wheel and the ring taking up concentric positions. However, in the opposite direction of rotation of the wheel, the centre of the wheel tends to become offset with respect to the centre of the ring so that the teeth mesh and the wheel drives the ring. The wheel or the ring is preferably made of a self-lubricating material such as a plastics.
Patent GB-1381104-A (GB)
Title: Hydroprocessing catalyst
IPC: B01J23/85
Filed: 1971-12-17
Abstract: 1381104 Hydrocarbon conversion catalysts EXXON RESEARCH & ENG CO 17 Dec 1971 [28 Dec 1970 (2)] 58750/71 Heading B1E [Also in Division C5] A hydroprocessing catalyst comprises a hydrogenation component on an aluminacomprising support having a major portion of its surface area in pores ranging from 30 to 80 in diameter, with less than four percent of the total pore volume being in pores ranging from 200 to 2000 in diameter, and at least three percent of the. total pore volume being in pores greater than 2000 in diameter. In an example a catalyst comprises 1.7% SiO 2 , 3.5% CoO, 12.0% Mo, O 3  and the balance alumina, and is prepared by adding H 2 SO 4  to a, mixed solution of sodium silicate and aluminate containing gluconic acid, then adding a solution of aluminium sulphate to the mixture to give a slurry which is filtered and dried and impregnated with the Co-M components. The catalyst may be used to treat residual or residue-containing feedstocks, heavy gas oils and dirty gas oils.
Patent GB-1379407-A (GB)
Title: Method of filling hollow waffle bodies
IPC: A23G3/20
Filed: 1971-12-29
Abstract: 1379407 Filling waffles RONDO-NEISSE SUSSWARENINDUSTRIE GmbH 29 Dec 1971 [31 Dec 1970] 60410/71 Heading A2A A filler for hollow waffle bodies is solid at normal room temperatures and is rendered fluid or pasty by being supercooled under pressure and injected horizontally through one or more nozzles into the waffle bodies. A filler composed of cocoa powder, skim milk powder, sugar, shortening and hazelnut meal becomes sufficiently fluid when supercooled to a temperature of between 13 and 15‹C at a pressure of 10 atmospheres. Filling apparatus comprises a pressure chamber 1 with a stirrer driven by a motor 6 and a connection 8 to a nozzle 4 arranged to discharge the filler transversely with respect to the direction of movement of a conveyer chain 10 driven by a gear 11 and on to which the waffle bodies are fed by a device 15. The chamber 1 which, together with the connection 8 and nozzle 4, is surrounded by a hot water jacket for control of the temperature of the filler, is supplied at 3 with the filler ingredients or with ready mixed filler. The conveyer is advanced intermittently, and a discharge valve in the nozzle is operated by a solenoid under the control of a feeler which detects the presence of waffle bodies carried by cradles on the conveyer. Several nozzles may be arranged side-by-side to fill a corresponding number of waffle bodies simultaneously, and a pair of parallel conveyers may be provided, flanked by filling nozzles. Stripping blades may be employed to remove excess filler from each end of the waffle bodies.
Patent GB-1386071-A (GB)
Title: Recessing or similar tools
IPC: B23B29/034
Filed: 1970-12-29
Abstract: 1386071 Boring bars; expanding cutters P A KEEN 28 March 1972 [29 Dec 1970] 61497/70 Heading B3C A recessing or similar tool for machining a bore 9 in a workpiece has a mounting shank 1 which is axially movable relative to a body 3, 4, 5 on engagement of the body with the workpiece or a locating member at the bore and as a result of this relative movement, piston and cylinder means such as a piston 15 as shown fixed to the shank and cylinder 14 formed in body part 4 is operated and fluid forced therefrom, for example along passage 17, operates a further piston and cylinder means 20, 19 in head 5, which is arranged to carry or actuate one or more cutters 6, and thereby effecting lateral or radial extension of the cutter(s). Extension of the cutter 6 secured in the piston 20 by its shank 16 engaged by screw 22 may be limited by spring-loaded nut 26 screwed on piston shank 27. Excess fluid may flow along passage 31 to reservoir 30 and act on spring-loaded piston 32. Retraction of the cutter is assisted by springs 23, 29. The body part 4 may bear on the workpiece by means of collar assembly 40 incorporating a rolling bearing so that no surface rubbing takes place. Other arrangements of apparatus include extensions for head 5 and replacements for collar 24 for use with bores of different sizes (Figs. 3, 4, not shown), two pistons with cutters (Figs. 7 and 8, not shown), a single piston with two cutters (Fig. 6, not shown) and a backfacing arrangement (Fig. 9, not shown). If it is required that the recess formed should be wider than the cutter width, e.g. recess 7a, Fig. 10, axial movement of the cutter in the bore, after full radial extension, is provided by incorporating an attachment comprising a rear actuating section 70 clamped to sleeve 2 on the shank 1 and a forward section 80 of telescopic sleeves, whose innermost 81 is secured to the rotatable part 44 of collar assembly 40. Head 5 is mounted on a spacer 54. After a recess the width of the cutter has been machined by the method above, continued axial movement of the shank 1 permitted by the available excess of movement of piston 15 in bore 14 and the provision of reservoir 30, causes sleeve 73 to engage sleeve 83 and rib 87 moves away from balls 84 which normally hold sleeves 81-83 axially locked. The tool body then moves relatively to sleeve 82 and against springs 88, 91 and cutter 6 moves down the bore.
Patent GB-2001644-A (GB)
Title: Preparation of Tobias Acid
IPC: C07C303/02
Filed: 1978-07-24
Abstract: A process for the preparing Tobias Acid (2-amino-1-naphthalene- sulfonic acid) from beta-naphthol is disclosed in which an intermediate reaction mixture containing Armstrong Acid (2-hydroxy-1-naphthalenesulfonic acid) is transferred to a holding vessel at about 0 DEG -10 DEG C. for about 5-60 minutes prior to carrying out the amination reaction which converts the Armstrong Acid to Tobias Acid, and in which also, later in the process after amination and extraction of the reaction mixture with a water-immiscible organic solvent, an extracted aqueous phase of alkali metal and ammonium salts of Tobias Acid is acidified to pH about 1.8-2.5 at about 20 DEG -80 DEG C. to form a slurry from which Tobias Acid can be recovered by cooling to about 20 to 45 DEG C.