baber/WOPTO huggingface dataset:
Patent GB-134233-A (GB)
Title: Improvements in Carburetters for Internal Combustion Engines.
Inventor: CLAUDEL CHARLES HENRI
IPC: F02M3/14
Filed: 1917-03-14
Abstract: 134,233. Claudel, C. H. March 15, 1916, [Convention date]. Spray carburettors. - The fuel nozzle 10 intended more particularly for slow running, extends into the admission pipe with its outlet orifice some distance from the wall thereof, and is so arranged that, during slow running of the engine, it discharges into a notch A<1> formed in the throttle valve. In a modification, the nozzle discharges into a notch on the air-inlet side of the valve.
Patent GB-560652-A (GB)
Title: Improvements in or relating to photoelectric cells
IPC: H01L31/0236
Filed: 1943-03-09
Abstract: 560,652. Photo-electric cells. SANGAMO WESTON, Ltd. March 9, 1943, No. 3802. Convention date, April 3, 1942. [Class 40 (iii)] The surface of the photosensitive material to be coated with a translucent electrode is made non-planar to a substantial extent. In the form of cell shown in Figs. 1 and 2, the upper surface of a selenium layer 2 on a base electrode 1 is undulated in circular formation and coated by sputtering or otherwise with a translucent electrode 8. The circular undulations are crossed by radial grooves or ribs 4, and a depression 5 is formed in the centre and indented or embossed with an identifying symbol or mark 6. The selenium layer is produced by placing selenium in powder or pill form on the base electrode, heating the assembly to make the selenium melt and flow over the surface, pressing on the surface a die of the desired irregular or non-planar configuration, and finally light sensitizing the unit. The rim of the selenium layer is made comparatively thick ; a collector ring 7 is sprayed thereon ; the translucent electrode coating 8 is then applied to the surface ; and the grooves may be filled with transparent lacquer or resin 9. The increased surface exposed to radiation gives an increased current output. In a modification, Fig. 3, the surface of the selenium is formed into a series of inclined faces giving directional sensitivity to the cell. In another' modification, the surface is honeycombed with recesses interconnected by gaps in their walls and the translucent electrode layer is applied only to the bottom of the recesses and of the gaps. The walls of the recesses act as baffles reducing the acceptance angle of effective radiation.
Patent GB-467745-A (GB)
Title: Improvements relating to door latches
IPC: E05B15/16
Filed: 1936-02-08
Abstract: 467,745. Door latches. EVERED & CO., Ltd., and WILSON, A. H. Feb. 8, 1936, No. 3880. [Class 44] The outwardly presented face 6<a> of a rim latch casing 6 and its surrounding rim are made of non-metallic material such as that known under the Registered Trade Mark " Bakelite " ; the inner side of the face is reinforced by a metal plate 10 on which the parts of the latch mechanism are assembled. The shank of the handle knob which fits over the spindle carrying the hub 16b of the follower 16, is provded with a bearing surface 6<c> in the casing face, while a smaller surface is provided in the plate 10 for the follower hub 16b. The latch bolt is made of two metal stampings 8<a> to give a forked rear part and a tubular central part 8<b> to house the spring 15 on a headed pin 14 held against the fixed post 12. A tongue on the bolt head 8 is inserted between the forward ends of the stampings and is riveted in position. The latch is held in its locked or unlocked position by means of a projection 8d on the bolt which is engaged by a rib or corrugation 7<c> on a plate 7b which can be moved vertically by a sliding member with a thumb-piece 7<a> made of the same material as the casing. The latch may be operated by a handle on both sides of the door, or by a handle on one side and by a key on the other.
Patent GB-556176-A (GB)
Title: Improvements in or relating to the production of printing plates, templates and the like
IPC: B41C1/10
Filed: 1942-03-25
Abstract: 556,176. Photo-mechanical printing plates. ROBINSON, Ltd., E. S., & A., FOWEBAKER, T. S., and SHAW, S. T. March 25, 1942, Nos. 3961 and 8526. Drawings to Specification. [Class 98 (ii)] [Also in Group XVI] Lithographic printing plates for printing drawings on to sheets of wood, paper, artificial resin, or metal which may be converted by tooling into templates are prepared by coating a metal plate with a protective coating, e.g. a colloid capable of being hardened by the application thereto of a suitable liquid, applying the design to the coating with such liquid, and washing away the unhardened parts of the coating. The master plate thus prepared may be used to print directly or by means of an offset plate consisting of a metal plate having a coating of glycerine and gelatine, on to a number of plates from which the final prints may be made by direct or offset printing. The liquid employed may be a solution of ammonium or potassium bichromate which causes the colloid to harden by exposure to light, or may be such as to have a direct hardening action on the colloid. The design formed on the plate may be given greater relief by applying thereto a fusible powder such as bitumen or shellac. Direct printing from the plate may be effected by placing the printing plate and the plate to be printed between rubber blankets and exhausting the air from between the blankets. A plate to be formed into a template may have the design thereon rendered more legible by the application thereto of a fusible powder having a bright metal dust content. To facilitate the application of the liquid to the colloid, the design may be printed on the colloid in a coloured powder.
Patent GB-929713-A (GB)
Title: Improvements in photoelectric measuring instruments
IPC: H02P7/347
Filed: 1959-10-29
Abstract: 929,713. Photo-electric control of rolling mills. M. C. PFISTER. Oct. 29, 1959 [Nov. 27, 1958], No. 4020/62. Divided out of 929,711. Class 40 (3). [Also in Group XXII] In a three-high rolling mill, the release of a pre-rolled billet to a further rolling is synchronised with the introduction of an incoming billet by measuring the position of each billet with a photo-electric scanning head as described in Specification 929,711. A billet is passed along the track 66a, Fig. 3, and through a first profile of rollers 64, 65, Fig. 4, to a tilting table 68 where it is lifted and passed back through rollers 63, 64 to the track 66b ready to be passed through a second profile of rollers 64, 65. At this stage the next billet is approaching on track 66a and the position of each billet is measured by a scanning head 70, 71 as described in Specification 929,711 so that they may be released together to pass through the rollers together.
Patent GB-454702-A (GB)
Title: Improvements in curbs for fireplaces and the like
IPC: F24B1/198
Filed: 1936-02-10
Abstract: 454,702. Domestic curbs. WOODALL, H. R., and WOODALL & SONS, Ltd., I., Portas Street, Dudley, Worcestershire. Feb. 10, 1936, No. 4032. [Class 126] In a curb of the kind in which the end members 2 are hinged to the ends of the front member 1 so that they may be folded against it for packing, the ends of the members are formed as overlapping steps 1a, 2a extending beyond the hinge axis, and are locked by a pin 5 sliding in registering apertures in the steps. In the form shown the pin is prevented from being withdrawn by a projection 8 extending laterally from it into a groove 9 formed in the side of the aperture in the part 1a. The front ends of the side members may extend beyond the front edge of the front member to form ornamental projections 2b.
Patent GB-643462-A (GB)
Title: Improvements in and relating to two-speed rams for hydraulic machinery
IPC: B66F3/42
Filed: 1947-02-12
Abstract: 643,462. Hydraulic jacks. SKYHI, Ltd., and STEAD, A. H. Feb. 12, 1947, No. 4056. [Class 78 (iii)] A quick lifting device for the piston of a hydraulic jack comprises a small bore quick lift cylinder 6 located concentrically in the large bore of the hollow piston - rod 4, and a tubular guide 5 for this cylinder secured in the base of the jack. The piston 4a, together with the cylinder 6, quickly slides up the guide 5 when oil is pumped by a hand pump 8 through valve 8i, duct 1b and housing 7 to the interior of the guide 5, and the reduced pressure in the space 3a behind the piston 4a causes pre-filling valve 10 to open and admit oil from the reservoir 2 through duct 1e and aperture 7e. When the head 4h engages the load the space 3a is filled with oil which, under the pressure produced by the load closes valve 10 and thereafter oil is delivered to the space 3a by the pump 8 through duct 1b, housing 7 and non-return valve 11 until the load has been lifted to the required height. To lower the jack a release valve 9, connected to the reservoir through a duct (not shown) and to the duct 1b by a duct 1c is opened, the pressure in the cylinder 6 falls, after which the high pressure oil in the space 3a lifts the escape valve 12 and allows the oil to return to the reservoir via housing 7, ducts 1b, 1c and release valve 9.
Patent GB-230968-A (GB)
Title: Improvements in, or relating to the manufacture of a nitroderivative of a chlor-hydroxytoluene
IPC: C07C205/26
Filed: 1924-02-16
Abstract: Nitro-5-chlor-2-hydroxytoluene is produced by sulphonating 5-chlor-2-hydroxytoluene with concentrated sulphuric acid in the cold and running the sulphonation mixture into an aqueous solution of sodium nitrate.  The compound is a preservative for wood.
Patent GB-928462-A (GB)
Title: Improvements in or relating to the production of corrugated reinforced synthetic resin sheets
IPC: B29B15/12
Filed: 1959-02-05
Abstract: 928,462. Corrugating sheet material. J. F. SUMMERSGILL. Feb. 1, 1960 [Feb. 5, 1959], No. 4083/59. Class 42 (2). [Also in Group V] Corrugated reinforced synthetic resin sheets are produced by passing reinforcing material, e.g. glass fibre, through a bath of synthetic resin, e.g. polyester resin, so as to impregnate it with the resin, applying regenerated cellulose sheet to the surfaces of the resinimpregnated reinforcement to form a laminate, and passing the laminate sheet 1, together with a similar one 2 positioned below it, to a corrugating machine comprising upper, lower and intermediate chains 3, 4 and 5, respectively, of mould bars, the upper laminate sheet 1 being fed between the upper and intermediate mould bars 3, 4 and the lower laminate sheet 2 between the intermediate and lower mould bars 4, 5 so as to be subjected to pressure therebetween, and the two laminate sheets 1, 2 together with the chains 3, 4 and 5 are passed through a polymerizing or curing chamber 16. Where four corrugated sheets are to be produced simultaneously, each laminate sheet comprises two plies of resin-impregnated material between and on either side of which are regenerated cellulose sheets. After corrugating, the resin-impregnated sheets are separated by parting them along the centrally situated sheet. Detached lengths of the chains of mould bars are transferred from the exit to the entry end of the machine as operation proceeds by a sling 30. The reinforcing material may be glass fibre or other high or low wet strength fibres, preferably in the form of paper or chopped glass fibre mat. Where the reinforcement is of low wet strength the sheets must be moved through the machine slowly to prevent rupture of the fibres while, on the other hand, a high wet strength reinforced sheet may be moved more rapidly. In this connection, the heated chamber 16 is of adjustable length and the upper and lower chains 3, 5 may be made continuous (as shown in broken lines) while the intermediate chain 4 may have some sections removed.
Patent GB-803593-A (GB)
Title: Improvements in and relating to sedimentation tanks
IPC: B01D21/02
Filed: 1956-02-10
Abstract: 803,593. Gravity-separation apparatus. HARTLEY, C. J. Jan. 21, 1957 [Feb. 10, 1956], No. 4159/56. Class 46. In a sedimentation tank having a central feed box the wall of the feed box forms one wall of an annular or like chamber into which the clarified liquid weirs over and from which it is discharged outside the tank by a pipe, while the sediment settles into the bottom of the tank and is drawn off by a further pipe by hydrostatic head. In Fig. 1 a weir channel 20 is attached to the outside of a feed box 15 suspended from an overhead bridge 14. The top of the outer wall of the channel 20 forms the weir, and a discharge pipe 21 extends radially from the channel. In Fig. 3 the weir channel is formed by the upper part of the feed box wall, by the upper part of the wall of a sludge box 23 and by a horizontal division plate 13. Sludge is discharged by a pipe 22, an adjustable bellmouth 25, the box 23 and a pipe 24. In a further alternative the weir channel may be slung direct from the bridge 14 independently of the feed box.
Patent GB-317334-A (GB)
Title: Improvements in refrigerating machines of the absorption type
IPC: F25B15/10
Filed: 1928-02-10
Abstract: 317,334. Maiuri, G., and Bossini, R. F. Feb. 10, 1928. Refrigerating absorption machines for. - In machines working on a continuous cycle and with a pressure-equalizing inert gas, two absorbers 7, 8 containing liquor at different concentrations are used, and the heat of absorption in the weak absorber 7 is used to generate the refrigerant from the stronger liquor. The main generator 1 is heated externally and is connected with the absorber 7 by pipes 14, 12, and 11, 13 forming a heat exchanger. The evolved vapour rises through the upper part of the generator, serving as a rectifier, to the condenser and flows as liquid through a pipe 5 to the evaporator 6. Inert gas is heated in a rising limb 9 and cooled. in a descending limb 10. The evaporated refrigerant and inert gas pass to the absorber 8, which is cooled by a water jacekt, and the resultant strong liquor flows by a pipe 22 to spaces 18 and 16 around the other absorber 7. Some gas mixture passes through the bent sealing pipe shown to the weak absorber 7. Due to the heat of absorption vapour is evolved and passes through a pipe 17 into the top 2 of the main generator and on to the condenser. In a modification the gas evolved from the solution around the absorber 7 is condensed and evaporated in a stream separate from the main gas stream. Solvent condensed in the condenser is diverted by a trap 15, at the entrance to the evaporator, and a pipe 23 back to the liquor circuit. An inert gas vent 27 extends from the condenser to the jacket space 16. According to the Provisional Specification the inert gas may be circulated by a fan, or difference in density between the inert gas and refrigerant vapour may produce the circulation.
Patent GB-570572-A (GB)
Title: Improvements in or relating to methods of hardening and tanning artificial fibres made of albuminous substance
IPC: D01F4/00
Filed: 1943-03-17
Abstract: Alkaline artificial albuminous fibres are hardened, freed from alkali by acid, washed, stretched, and further hardened by means chemically different from those employed in the first hardening operation, whereby their strength is improved.  The first hardening treatment may be effected by aldehydes, e.g. formaldehyde vapour or quinones and the second by metal salts, e.g. a chromium salt solution, or vice versa.  The hardening and stretching operations may be effected at different temperatures. In the examples: (1) slightly alkaline caseinate fibres are hardened with formaldehyde vapour, dipped in dilute acid, washed, stretched, submerged in a chrome alum bath containing calcined soda, washed and dried; (2) slightly alkaline casein fibres are hardened with dormaldehyde vapour, freed from alkali with dilute acid, washed, stretched during their travel through a water bath and a chrome bath, immersed for two days in a chrome bath, washed and dried.  Specifications 502,710 and 521,148 are referred to.
Patent GB-819311-A (GB)
Title: Flexible disc gate valves
Inventor: LANGNER EMIL
IPC: F16K3/28
Filed: 1956-02-13
Abstract: 819,311. Valves. CRANE CO. Feb. 13, 1956, No. 4419/56. Class 135. A flexible gate valve disc has a recessed upper portion 7 receiving a stem T-head 11, and oppositely disposed tapered end faces 5, 6, a central strut 8 connecting opposite end portions 3, 4 carrying the faces, the strut being defined at its ends by fillets 9, and an annular continuous space substantially of a width equal to the height of the strut extending through the recessed portion, the disc being cast solidly and the fillets being machined. The solid disc may have the annular space formed by a milling, cutting or planing tool having a rounded peripheral cutting edge or by a saw, the fillets being formed as a finishing operation by a tool inserted in the annular space. The rounded fillet is said to remove the stresses which arise on relative movement of the two end faces of the disc when the annular space is formed with sharp angles.
Patent GB-900345-A (GB)
Title: Packaging process
Inventor: ROTHAUG HELMUT
IPC: B65B11/52
Filed: 1959-02-09
Abstract: 900,345. Packaging processes. KALLE & CO. A.G. Feb. 9, 1959, No. 4514/59. Class 94(1).  A packaging process comprises placing an article between an air-permeable base and a polyolefin film, heating the film, using suction to draw the film over the article and on to the base, and then continuing the heating and pressure difference until the film adheres to the base there being no adhesive between them. There may be a time interval between the deformation of the film and the bonding of the moulded film to the base by heat and pressure. The film may be polyethylene or polypropylene, subjected to radiation from an infra-red heater. If a film of 0À400 mm. thickness is used it may be heated for about 35 seconds before being deformed over the article and against the base by suction, the bond being formed during a further heat and pressure period of 35 seconds.
Patent GB-1472052-A (GB)
Title: Preparation of d-penicillamine and substituted 3-pyrazoline- 5-ones
IPC: C07D231/50
Filed: 1976-02-05
Abstract: 1472052 D-penicillamine and substituted 3- pyrazoline-5-ones PLIVA PHARMACEUTICAL & CHEMICAL WORKS 5 Feb 1976 [14 Feb 1975] 04588/76 Heading C2C D-penieillamine and substituted 3-pyrazoline- 5-ones of the formula are prepared by reacting a penicilline of formula with a hydrazine of formula R 2 -NH-NH 2 , in which R 1  represents a radical of the formula and R 2  represents an H atom or a phenyl group, in an organic solvent at a temperature of from 10‹ to 40‹ C., and thereafter heating the reaction mixture in the presence of water for 3 to 10 hours at a temperature of from 50‹ to 100‹ C. The substituted pyrazolone may be filtered off and the penicillamine may be recovered from the mother liquor by evaporation to dryness followed by recrystallization from dilute ethanol.
Patent GB-893107-A (GB)
Title: Improvements in or relating to apparatus for collecting cigarettes in receptacles
IPC: A24C5/354
Filed: 1959-02-10
Abstract: 893,107. Stacking cigarettes. PEMBROKE, G. F., HILLMAN, J. G. E., and MOLINS MACHINE CO. Ltd. Feb. 9, 1960 [Feb. 10, 1959], No. 4612/59. Classes 18 and 94(1). Cigarette collecting apparatus as described in Specifications 877,875 and 893,104 also comprises movable parts at the corners of the stackforming container which are moved to depress the corners of the stack to enable the stack to clear any obstructions in the inner corner portions of the container into which they are to be placed. The containers are filled in two cycles, in the first of which the lower corners of the stack are shaped, the upper corners being shaped in the second cycle. Cigarettes are fed downwardly between walls 140 on to a platform 15 which moves slowly downward while the part 28 rises relatively to the platform, pushing up the flaps 26 to shape the lower corners of the stack. When the platform 15 is at its lowest position the flow of cigarettes is interrupted by means of needles 12 and a platform 12a projected into the stack The pusher plate 32 then advances to push the stack into the lower half of the waiting container 11. The container 11 is then lowered to bring its upper half into register with the pusher 32 while the platform 15 is raised to a position below the platform 12, which is withdrawn to allow further stacking. As the container 11 on its conveying chains 83 approaches its lowest position, the cam face 51 of the member 50 connected to the chains 83 engages the roller 55, thus swinging the lever 47 so that the pin 48 pushes the link 43 to the right and thereby brings the pin 44 into the range of action of the end of the arm 60. As the member 62, Figs. 4 and 5 (not shown), depresses the arm 60, the latter engages the pin 44 and pulls the link 43 downwardly. As a result, the hell crank lever 38, 39 is rocked and the roller 42 presses the flap 34 inwardly shaping the top corners of the stack. The pusher plate 32 has pivoted top corner portions which remain flush with the plate 32 during the first pushing stroke but are swung back during the ejection of the second batch of cigarettes to enable the plate 32 to pass the flaps 34.
Patent GB-641387-A (GB)
Title: Improvements relating to phase shifting apparatus
IPC: H03H11/20
Filed: 1948-02-18
Abstract: 641,387. Phase displacement. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Feb. 18, 1948, No. 4776. Convention date, Dec. 11, 1946. [Class 38 (ii)] [Also in Group XL (c)] An oscillation generated at a source 1, Fig. 1, is given a controlled phase shift at the output load 2 by passing it through two parallel branch circuits, one including an amplifier 5 and output valve 7, the other including a similar amplifier 9 and output valve 11, preceded by a device 8 giving a 90 degree or other fixed phase shift to the oscillation. The amplification of the amplifiers 5, 9 is controlled by two potentiometers 19, 20 connected across batteries 18, the tapping arms 21, 22 being set at right angles and so arranged that when either arm is given a maximum or minimum bias to one amplifier, the other arm is giving a mean bias to the other. The tapping arms are gauged for simultaneous adjustment by a link 22a. Fig. 2 shows one of the amplifiers, comprising a normal first stage 30 followed by a second stage 24 in which the screen voltage is determined by the position of the arm 21. The valve 24 has negative back coupling from the anode to the control grid through a resistor 39. When the screen voltage is at its mean value, the valve gives zero output, and as the screen voltage varies from this mean value the output rises in amplitude and its phase sense depends on whether the screen voltage is above or below the mean. The valves 7, 11 are thus supplied with oscillatory voltages in quadrature, the amplitudes and phase senses of which are continuously adjustable by the control 22a. The voltages combine vectorially in the cathode resistor 16, and the load 2 is energized at any desired phase from 0 to 360 degrees.
Patent GB-1513612-A (GB)
Title: Filter material for smoking articles
IPC: A24D3/16
Filed: 1976-02-06
Abstract: 1513612 Tobacco smoke filters PHILIP MORRIS INC 6 Feb 1976 [10 Feb 1975] 04800/76 Heading A2C [Also in Division Cl] A composition for use in tobacco smoke filters comprises activated alumina impregnated with sodium permanganate and another sodium compound. The alumina must contain less than 6% by weight of silica have a surface area of at least 100 m<SP>2</SP>/g and a pore volume of at least 0.2 cc/g. The sodium permanganate is present in an amount from 5 to 30% by weight of the composition and the molar ratio of the sodium compound to the permanganate is in the range 1:0.5 to 1:20. The composition has a moisture content of 5 to 30% by weight. The sodium compound may be a hydroxide, carbonate, phosphate or borate.