baber/WOPTO huggingface dataset:
Patent GB-317764-A (GB)
Title: Improvements in and relating to pressure measuring devices
IPC: G01L11/00
Filed: 1929-08-20
Abstract: 317,764. British Thomson-Houston Co., Ltd., (Assignees of Payne, J. H.). Aug. 21, 1928, [Convention date]. Electric - diaphragm pressure gauges, indicating means for, with damping - arrangements; dynamometers. - The pressure of liquid in a tank 10 is communicated to a vessel with yielding walls 11 supported by the rod 13 in contact with the loose carbon resistance 14 in series with the battery 17, ammeter 18 and electromagnet 15 the armature 16 of which is connected to the rod 13. Increase of pressure of the fluid causes a decrease in the resistance 15 thus causing an increase in the force upwards on the armature 16 and thus on the rod 13. Equilibrium is reached when the current is such that the force upwards on the rod 13 through the armature 16 balances the force downwards on the rod 13 due to the pressure of liquid in the tank 10. When the pressure is unsteady damping-devices 19 and 20, Fig. 1, shown in detail in Fig. 2, are used on rod. 13 comprising vessels, covered top and bottom with flexible material 28, filled with viscous substance 29 in which are stationary and movable projections 30 and 31 which tend to check the flow of the viscous substance. The apparatus described above can be used as a current regulating device, and also to determine the measuring force in known devices such as an air speed indicator for aeroplanes, an electric log for ships, a thermometer, a depth of water indicator, a steam pressure indicator, a weighing machine or a flow meter, in all cases the force to be measured being applied to the rod 13, where necessary using the device 11.
Patent GB-157065-A (GB)
Title: Improvements in or relating to locks
IPC: E05B35/08
Filed: 1920-09-02
Abstract: 157,065. Naamlooze Vennootschap Handel-Maatschappij Planeet, (Assignees of Kampmann, G. S. R.). Jan. 12, 1920, [Convention date]. Lock mechanism, changekey; lever and tumbler type. -Relates to locks of the kind adapted to be locked by any one of a series of keys and to be unlocked only by the key used for locking. According to the invention, the key operates upon two sets of pivoted plates arranged in pairs interconnected by pin and cam-slot devices so that one member of each pair moves towards, and the other away from, the key in accordance with a simple formula, which also governs the lengths of the corresponding teeth of the keys of the series. One set of plates operates the bolt releasing and retaining stud, and the other set remains in its adjusted position after the locking rotation and withdrawal of the key and prevents unlocking rotation of any other key in the lock. The sliding bolt 1, Figs. 5 and 12, has a slot 4 engaged by a stud 12 on a tumbler 11 pivoted on a fixed pin 6 and acted upon by a leaf-spring 5. The stud 12 retains the bolt in its projected or withdrawn positions, and also forms the pivot of a plate 13 which, with a plate 15 pivoted on the pin 6, forms the first set of plates. The plates 13, 15 are interconnected by a pin 14 and cam-slot 16 in such manner that the sum of the distances of the nearest points on the plates from the key axis varies in accordance with a simple law; in this example the sum is represented by a constant. At the other side of the key centre, two or more pairs of interconnected control plates 18, 20, Figs. 10 and 11, which form the second set, are pivoted on fixed pivot pins 7, 8 respectively. The pin and cam-slot connections 19, 21 between the plates of each pair produce movement of the plates relatively to the key axis according to the same law as for the first set of plates. The plates 18, 20 are retained frictionally in any position of adjustment. For locking, the key is rotated in a counterclockwise direction and first engages the pair of plates 13, 15 to move the lever 11 and stud 12 into the boltreleasing position. The key then lifts the bolt 1 and moves clear of the plates 13, 15, which are returned to the bolt-engaging position by the spring 5 acting on the lever 11. The final part of the key rotation sets the pairs of plates 18, 20 into positions which they retain after the key is withdrawn. An attempt to unlock with any other key will be obstructed by the second set of plates, which will only permit the clockwise turning of the key by which they were set. Counterclockwise rotation of a key after the bolt has been shot is prevented by a projection 17 on the bolt.
Patent GB-1510256-A (GB)
Title: Process for the manufacture of betamethylthiopropionaldehyde
IPC: C07C319/18
Filed: 1976-06-18
Abstract: 1510256 Beta - methylthiopropionaldehyde RHONE-POULENC INDUSTRIES 18 June 1976 [20 June 1975] 25461/76 Heading C2C A process for the manufacture of betamethylthiopropionaldehyde which comprises: (i) absorbing a gas mixture containing acrolein which has been obtained by catalytic oxidation of propylene, by previously-prepared betamethylthiopropionaldehyde and (ii) reacting the acrolein absorbed by the beta-methylthiopropionaldehyde with methylmercaptan at a temperature of 10‹ to 50‹C., the hemithioacetal of beta-methylthiopropionaldehyde being formed during the reaction, and in which, prior to the absorption, the gas mixture is substantially freed firstly from any acrylic acid and then from any water which it contains, and the hemithioacetal content in the reaction mixture is kept at above 0 and up to and including 1% by weight. The hemithioacetal concentration may be measured potentiometrically and maintained within the required limits by adjustment of the flow rates of reactants.
Patent GB-1027658-A (GB)
Title: Process for the treatment of surfaces of iron and steel
IPC: C23C8/22
Filed: 1964-06-19
Abstract: Ferrous articles are nitrided, carburized or sulphurized by immersing them in a bed of carbon black particles fluidized by a stream of air, there being introduced into the bed a treatment gas which is a compound of hydrogen with the element to be diffused into the surface.  The treatment is carried out at 300 DEG -900 DEG  C., particular ranges specified being 500 DEG -650 DEG C. when using ammonia, 600 DEG -900 DEG C. when using propane, and 300 DEG -600 DEG C. when using hydrogen sulphide.
Patent GB-1462938-A (GB)
Title: Pressure control valves
IPC: B23P15/00
Filed: 1974-06-10
Abstract: 1462938 Making reducing valves S E ASHTON 8 May 1975 [10 June 1974] 25628/74 Heading B3A [Also in Divisions F2 and G3] A method of providing in a reducing valve a passage between a cylindrical bore (7), Fig. 1 (not shown), and a cylindrical needle 13 longitudinally slidable therein, in which passage gas is withdrawn to reduce its pressure, comprises coating the needle with a relatively soft material to a diameter greater than that of the bore, inserting the needle into the bore and moving it fully along the bore so that a layer of the soft material is skimmed from the surface of the needle and adjusting the extent of needle penetration in the bore to provide the required pressure reduction. The needle 13 is coated with a lead rich solder and a thin layer of a few thousandths of an inch is skimmed off by the bore (7). The execess solder is pushed back to a conical shoulder 14 of the valve member and it forms a seating on it. When the valve member is fully screwed in, the seating abuts a conical portion (15) at the end of the bore (7) thereby completely shutting off the supply of gas.
Patent GB-1284355-A (GB)
Title: Electrostatic transfer of toner images
IPC: G03G15/01
Filed: 1970-05-28
Abstract: 1284355 Electrostatic printing XEROX CORP 28 May 1970 [4 June 1969] 25641/70 Heading B6C Powder images are electrostatically transferred to a single copy sheet under-conditions wherein at each transfer after the first transfer the applied electric field in the transfer zone is greater than in the preceding transfer. In the multicolour copier shown, in each revolution of the photoconductive drum 30 a charge image is formed, the image is developed (using apparatus described in co-pending Application 25638/70), and the toned image transferred to a copy sheet on transfer drum 201, the voltage upon which is automatically stepped up after each transfer. The drum 201 has a hollow conductive core 102 with a layer of insulating material 104 on its peripheral surface and a conductive ring 116 is fastened to an end plate to transmit the bias voltage from stationary brush 117 to the core of the drum 102. The drum 201 has copy sheet registration stops 113 and gripper fingers 112 (described in co-pending Application 25643/70). A copy sheet misfeed detector 43. e.g. one or more photo-cells is provided which when actuated rotates the transfer drum 201 away from the drum 30.
Patent GB-1333899-A (GB)
Title: Process for the manufacture of acrylonitrile or methacrylonitrile
IPC: B01J27/188
Filed: 1972-06-01
Abstract: 1333899 Catalyst for acrylonitrile and methacrylonitrile production KNAPSACK AG 1 June 1972 [5 June 1971 10 Nov 1971] 25721/72 Heading C2C [Also in Division B1] Acrylonitrile or methacrylonitrile are manufactured from propylene or isobutylene respectively by reacting the olefin with air and/or oxygen and ammonia at 350-520‹ C. and 0À1-10 atmospheres absolute in a flow or fluidized bed in contact with a powdered catalyst consisting of Fe/Bi/Mo/P oxides on a silicic acid carrier, the catalyst being prepared by (i) homogeneously impregnating a preformed pulverulent bismuth-phosphorus molybdate/silicic acid catalyst with an iron salt solution of volume 1-2À5 times the predetermined volume of the pores of the bismuth-phosphorus molybdate/ silicic acid catalyst; (ii) slowly drying the resulting Fe containing catalyst at 120-250‹ C. so that the iron salt decomposes to the oxide; and (iii) sintering at 600-700‹ C. The moist catalyst formed in step (i) may be saturated with gaseous ammonia, methylamine, dimethylamine, trimethylamine or ethylamine prior to drying in step (ii). Examples 8-14 and 18-20 describe the preparation of acrylonitrile from propylene, ammonia and air of volume ratios 1 : 1À25 : 9À5-10 respectively using catalytic oxides of elemental atomic ratios Mo : Bi : P: Fe of 15 : 10 : 1À2 : 1, 2À5, 5, 10, prepared by using Fe (NO 3 ) 2  as the iron salt.
Patent GB-1342853-A (GB)
Title: Lubricant additive
IPC: F02B1/04
Filed: 1972-06-02
Abstract: 1342853 Oil-soluble polybutene derivatives TEXACO DEVELOPMENT CORP 2 June 1972 [21 June 1971] 25773/72 Heading C3P [Also in Divisions C4-C5] Oil-soluble ashless polybutenyl alkylene-poly amino alkanol dispersants of formula where X and Y are H, (R<SP>11</SP>-O) y H or R; R is C 25-3500  polybutenyl radical; R<SP>1</SP> is a divalent C 2-8  hydrocarbyl radical; R<SP>11</SP> is a divalent C 2-4  hydrocarbyl radical; x is 1 to 6; y is 1 to 5 and the dispersant has an average molecular weight of 400 to 50,000; may be prepared by reacting a polybutene with an alkylene polyamine, and reacting the product with an alkylene oxide. The polyamine may be ethylene, propylene, 1,4- butane, 1,4-pentane or 1,6-hexane diamine; a polyethylene polyamine; piperazine or N- aminoethyl piperazine. The alkylene oxide may be ethylene, propylene or butylene oxide. In examples chlorinated polybutene is reacted with (I) hexamethylene diamine, (II) iminobispropylamine and (III) pentaethylene hexamine, and the products are further reacted with propylene oxide.
Patent GB-1351216-A (GB)
Title: Method and a device for collecting in large quantities substances floating on a liquid surface
IPC: E02B15/10
Filed: 1971-04-19
Abstract: 1351216 Scavenging vessel H L BERGMAN 19 April 1971 [13 April 1970] 25821/71 Heading B7A [Also in Division B1] Oil is removed from water by a collecting web 20 which is carried into the water and out again by an endless conveyer band 12, the web lifting and absorbing the oil and being carried by the upper run of band 12 and by means 17 into a receptacle 18 for used web and oil. As shown the apparatus is mounted on a ship for clearing oil slicks, but it could be used in a setting tank. The web 20 may be plastics, but as shown rolls 10 of paper are used, rails 11 delivering fresh rolls when the front one is exhausted. Band 12 has transverse ribs (24) which may be alternately inclined (Fig. 4, not shown) to form the paper web 20 into oil-holding pockets. The band 12 may be perforated, and web 20 may also be perforated with 1 cm. holes 10 cms apart to drain off water. Receptacle 18 may be replaced when full and could be located on another ship for removal. Web 20 leaves the water at 5 to 60 degrees to the surface. Guide plates 19 are inclined to direct oil towards the web.
Patent GB-242070-A (GB)
Title: Improvements in mechanically-propelled fans
IPC: F04D25/08
Filed: 1924-10-30
Abstract: 242,070. Haman, M., and Redington, T. F. Oct. 30, 1924. Regulating; driving-gear; impeller blades.-In a clockwork-driven fan the angularity of the blades is automatically varied as the tension of the spring decreases, to maintain the speed of rotation substantially uniform. The fan blades 11 are housed in a boss 10 and are each provided with an inwardly spring-pressed collar 13 on which is a stud 14 engaging an inclined slot 15 in the boss.
Patent GB-651941-A (GB)
Title: Improvements in and relating to stamping dies
IPC: B21D37/10
Filed: 1948-10-05
Abstract: 651,941. Making dies. FORD MOTOR CO., Ltd. Oct. 5, 1948, No. 25920. Convention date, Jan. 20. [Classes 83 (i), 83 (ii) and 83 (iv)] Casting ; stamping.-To avoid the expense of making and altering steel dies, experimental sheet steel pressings are worked by dies which are made of an alloy which melts at a temperature below the boiling point of water and which are cooled to minus 200‹ F. or below immediately before orduring use in order to give them the requisite hardness. A suitable alloy is one comprising 50 per cent bismuth, 13.3 per cent tin, 10 per cent cadmium and 26.7 per cent lead and sold under the Registered Trade Mark " Cerrobend." In one method of producing the dies, a baked plaster or clay mould is made from a wooden or soft metal model of the required surface and the alloy cast therein. Where the die is to have cooling passages following the contour of the die face, a core is formed by freezing a mixture of water and granular material, such as sand, in, for example, a rubber mould. It is found that such a core remains solid long enough for the alloy to solidify around it and the sand can afterwards be washed out of the die passages. In another method, suitable for producing small dies which may be cooled by immersion in liquid nitrogen before use, the alloy is cast directly on to a pattern to form one die, a sheet of aluminium of the same thickness as the sheet steel to be pressed is shaped to the surface of the die by pressing with a rubber pad and the other die is cast on to the aluminium. Flaws and blow holes may be repaired by means of a soldering iron and a piece of the alloy and finished dies can readily be altered by rasping-off or building up parts of the surface. In order to prevent overheating of the dies in use, they are insulated from the press by sheets of asbestos or other insulating material and the sheet steel is cooled before being pressed. The working faces of the dies may be chromium plated to increase their hardness and their heat-reflecting properties.
Patent GB-896690-A (GB)
Title: Improvements in or relating to pressure-reducers incorporating means enabling same to act as a stop-cock
Inventor: MARIE GEORGES
IPC: F16K35/02
Filed: 1959-07-30
Abstract: 896,690. Valves. ETABLISSEMENTS CLESSE S.A. July 30, 1959 [Aug. 1, 1958], No. 26149/59. Addition to 803,334. Class 135. In a pressure-reducing valve in which, as in the parent Specification, a loading spring for a diaphragm 5 which actuates the valve member (not shown) can be relieved of compression and subject to tension by movement of a member 13 so that the valve can be closed the member 13 is situated intermediate the ends of the spring or between the elements of a two-part spring and is arranged to be lifted by an inward flange 32 or pins, lugs, &c. on a sleeve 31 which is movable axially in response to rotation of a knob 20 having pins 37 which pass through arcuate slots 34 in an extension 4<SP>1</SP> of a cover 4 and engage helical slots 16 in the sleeve 31. The sleeve is held against rotation by engagement of a fixed pin with a longitudinal slot 33. A fixed pin or pair of pins 39 engaging a flat spring or pair of springs 38 in the knob 20 resists movement of the knob from either of its extreme positions.
Patent GB-488686-A (GB)
Title: Manufacture of colloidal urea-aldehyde condensation products
IPC: C08G12/12
Filed: 1937-09-28
Abstract: Water-soluble colloidal products are obtained by condensing urea with formaldehyde in the presence of water-soluble ethers of cellulose or other highly polymeric carbohydrate in aqueous solution while stirring.  Glyoxal may be used in place of formaldehyde and, instead of mixtures, water-soluble lower condensation products may be employed.  Specified water-soluble ethers are methyl cellulose, ethyl cellulose, oxyethylmethyl cellulose, methyl cellulose glycollic acid and ethyllichenine carboxylic acid.  Urea may be replaced by a derivative or substitution product, e.g. thiourea, phenylated or acetylated urea.  Filling-materials, e.g. sugar, may be present. Preferably 1,5-2,5 mols of urea are condensed with 1 mol of formaldehyde.  The products may be used as adhesives or binding-agents; thickening, impregnating and dressing agents; and as additions to soaps and washing agents.  Examples are given of the condensation of urea and formaldehyde in the presence of oxyethylmethyl cellulose and ethyllichenine carboxylic acid, and of urea and glyoxal in the presence of oxyethyl methyl cellulose. A sample has been furnished under Sect. 2 (5) of a product made by condensing urea and formaldehyde in the presence of oxyethyl starch.
Patent GB-1178946-A (GB)
Title: Bis-Triiodoisophthalamic Acid Compounds
IPC: A61K49/04
Filed: 1968-05-31
Abstract: 1,178,946. Radiopaque compositions. E. R. SQUIBB & SONS Inc. 31 May, 1968 [29 June, 1967], No. 26250/68. Heading ASB. [Also in Division C2] Compounds of formula: in which R is hydrogen or a lower alkyl or alkoxy group, R 1  is hydrogen or a lower alkyl group, n is 0-5 and the "lower" alkanoyl groups contain 1-7 carbon atoms are used as radiopaque agents. An example is given of a solution suitable for use in intravenous inography containing as active ingredient, the di-sodium salt of N, N'-ethylenebis(5-acetamido-2, 4, 6-triiodoiso phthalamic acid).
Patent GB-711942-A (GB)
Title: Continuous casting mold and method of manufacturing same
IPC: B22D11/041
Filed: 1952-10-20
Abstract: 711,942. Continuous casting. BABCOCK & WILCOX CO. Oct. 20, 1952 [Oct. 25, 1951], No. 26324/52 Classes 83 (1) and 83 (2) A continuous-casting mould-assembly comprises an open ended liner 11, an inlet manifold 27 for cooling fluid, and a number of cooling- fluid guide tubes 12 connected with the manifold and extending along the external surface of the liner to an unrestricted discharge opening, the guide tubes being in heat-exchange contact with and structurally supporting the mould liner. The liner 11 and tubes 12, preferably of brass, are enclosed by a sheet metal casing 35 spaced from the tubes and connected thereto by bolts 37, the space between the tubes and casing being filled with an initially plastic material 41 such as concrete. A refractory 42 is installed above the assembly. The liner and tube assembly is preferably made in halves 11a, 11b, bolted together at 47. Making moulds.-Straight tubes are filled with a low melting-point alloy and machined to remove a length of one side, between the positions 30, 13, and silver-soldered in a furnace to plates 11a, 11 b, together with blocks 38, 46 and bars 45. The tubes 12 are then again filled with a low melting-point alloy and the assemblies bent to shape, machined to size, bolt holes drilled and tapped, and ends of tubes 12 bent to the desired shape. Gaps between the sides 31 of the tubes are filled with silver solder.
Patent GB-1131996-A (GB)
Title: Snack food product
Inventor: BELTRAN ERNESTO GO
IPC: A23L1/18
Filed: 1967-06-08
Abstract: 1,131,996. Snack food. UNILEVER Ltd. 8 June, 1967 [20 June, 1966], No. 26409/67. Heading A2B. A pre-gelatinised starch, for example pregelatinised potato, rice, or wheat flour, is mixed with water and a saturated monoglyceride, for example glyceryl monostearate, to form a dough, which is extruded to form a thin sheet, which is divided into shaped pieces. The extrusian die is at a temperature perferably at least 11C. above the dough temperature, which is preferably not more than 70C. The sheet thickness is preferably 0.25-0.55mm, and the sheet is preferably stretched before being divided into pieces. The sheet may be partly dried, preferably to a 5-8% moisture content, before or after division. The shaped pieces may be puffed by subjecting to heat, for example intense infrared, preferably giving an intensity of 3-7.5 watts/cm<SP>2</SP> at the surface of the pieces, for examples by sources at 750- 1100C. Preferably the temperature of the pieces reaches about 110C. in 5-10 secs. The puffed pieces may be coated with a film of fat or powdered with flavouring and powdered fat.
Patent GB-623412-A (GB)
Title: Meter for indicating fuel consumption
IPC: G01F9/00
Filed: 1946-09-03
Abstract: 623,412. Fuel consumption meters. BOSE, B. N. Sept. 3, 1946, No. 26471. [Class 106 (iii)] In a fuel consumption meter for a motor vehicle of the type comprising, in combination, a fuel metering device for issuing a predetermined volume of fuel for consumption by the motor and means for indicating the distance travelled by the vehicle during the consumption of the predetermined volume of fuel, the indicating means includes a distance follower member moved according to the distance travelled by the vehicle during the measuring period, and a pointer connected to the member through a lost-motion device, the pointer being locked during the measuring period in the position in which it was just before the commencement of the measuring period and only being released and moved into the new position determined by the movement of the distance follower member during the measuring period under the control of the lost-motion device at or towards the end of the measuring period. Fuel enters the meter through a passage 2, Fig. 1, and is continuously fed to the motor through a pipe 4. The flow through passage 2 is normally in excess of the amount taken by the motor, and as the level rises in the chamber 1, an annular float 3 rises until it reaches a stop 5 on the valve stem 6. A further slight rise lifts the valve stem and shuts off the flow through the passage 2, the valve snapping into this position by virtue of springs 7 co-operating with a groove 9 in the stem. From this point the fuel supply to the engine is derived solely from the measured quantity in the chamber 1, and the float moves down until it reaches a lower stop 10 when further movement snaps open the valve again. The means for indicating the distance travelled comprises a worm 19, Fig. 3, driven, e.g. from the transmission shaft, adapted to drive a toothed sector 14 pivoted to a stirrup-shaped member 13 vertically slidable in guides 16. The clockwise movement of a lever 11, Fig. 1, pivoted to the valve stem 6, caused when the valve is closed by the float 3, acts through a spring 20 to press the toothed sector 14 into engagement with the worm 19. The sector is then driven counter-clockwise against a spiral spring 35 until the opening of valve 2 causes it to be disengaged. The sector 14 is coupled to a pointer 23, Fig. 3, by another spiral spring 21 constituting a lost-motion device. A drum 24 fixed to the pointer spindle is normally held by a pair of flat springs 25 pressing on its surface, but as the lever 11 rocks at the opening of valve 2, a pawl 29 pulls a ratchet-wheel 30 round one tooth-space together with a cam 28 which momentarily depresses a leaf 31 engaging the springs 25, causing the latter to bow outwards and so release the pointer, allowing it to assume a position corresponding with the maximum displacement of the sector 14.