baber/WOPTO huggingface dataset:
Patent GB-962144-A (GB)
Title: Electric can opener
IPC: B67B7/70
Filed: 1962-02-02
Abstract: 962,144. Electric can openers. VAUGHAN MFG. CO. Feb. 2, 1962 [July 3, 1961], No. 4000/62. Heading B8D. An electric can opener includes a driving wheel 130 operable by driving means 34, a cutter member 54 mounted on movable means 40 for movement relatively to the driving wheel towards and away from a can-top penetrating position, and a switch 148 for the driving means the switch only being operable to allow energizing of the driving means when the movable means have moved the cutter member to the can-top penetrating position. A case 16 of plastics material has a rectangular opening 26 in its front face slidably engaging the cutter carrier 40 which has an oval slot 44 through which extends a driving wheel shaft 127, carrying at one end the driving wheel 130, and being connected at the other to a gear-box 32. A lever 96, having a cam slot 112 at one end is screwed to the carrier at 94 and extends behind the front face and out through a slot 22 formed longitudinally in a sloping portion 20 of the case 16, said lever having a handle 102. A peg 132 affixed to the gear-box extends through the cam slot and by moving the lever up and down so that said peg lodges in different parts of the cam slot, the cutter carrier is moved up and down. To open a can the handle of the lever is moved upwards causing the cutter carrier to move upwards so that the cutter is spaced from the driving wheel which is fixed. The underside of the can head is placed on the top of the driving wheel and the handle moved down, causing the cutter to come down and pierce the can top and the can head to be looked between the cutter and the driving wheel. A switch button in the handle is pressed to actuate a leaf-switch connected to the motor, thus causing the motor to start and the can is opened. Spring means 78 attach the upper end of the cutter carrier to the inner side of the case 16 so that when a can head is locked between the cutter 54 and driving wheel 130, the spring means tend to pull the cutter backwards so that the can is firmly ensconced. Thus beads of different sizes are easily accommodated. Also, when the can is being opened a spring arm 114 on the lever pushes against the fixed peg 132 tending to prevent the cutter carrier from rising so that if a vertical bump in the bead is encountered the spring pressure prevents the cutter from rising and riding over the top of the can instead of cutting through it.
Patent GB-923280-A (GB)
Title: Handle for surgical blades, and the like
IPC: A61B17/32
Filed: 1962-02-02
Abstract: 923,280. Surgical knives. PHILIP MORRIS Inc. Feb. 2, 1962 [April 26, 1961], No. 4072/62. Class 81 (2). In a surgical knife having a removable blade, a transversely movable member is provided for displacing a portion of the blade to remove it. In the form described the blade 16, Fig. 3, has an elongated keyhole slot 18 for engagement with a grooved boss 25 on a projecting portion 14, Fig. 5, of the handle. The rear portion of the blade 16 bears against a surface 33 which is somewhat laterally displaced from the plane of the groove 23 in which the blade slides, so as to maintain it rigidly in position. A laterally movable stud 40, carried in a transverse hole in the handle, is provided for pressing the rear end of the blade away from the surface 33 so that the rear end of the keyhole slot is raised clear of the boss 25 and the blade can be drawn off the handle.
Patent GB-574645-A (GB)
Title: Preparation of carbonic acid esters
IPC: C07C69/96
Filed: 1942-03-27
Abstract: Carbonic acid esters are prepared by reacting a dihaloformate of a glycol with a saturated monohydroxy alcohol containing 1-3 carbon atoms such as propyl alcohol.  An alkaline reagent may be present and a diluent such as water, acetone, carbon tetrachloride or dioxane may also be added.  In the examples: (1) ethylene glycol bis-chloroformate is added to a mixture of methyl alcohol and pyridine.  The product is acidified with sulphuric acid, washed successively with dilute sulphuric acid, caustic soda and water, excess methyl alcohol evaporated and the ethylene glycol bis-(methyl carbonate) purified by vacuum distillation; (2) ethyl alcohol is added to a mixture of calcium carbonate and ethylene glycol bis-chloroformate which is heated under reflux with stirring.  Ethyl alcohol is removed by evaporation and the product washed with dilute hydrochloric acid and water; (3) ethylene glycol bis-chloroformate, isopropyl alcohol, benzene and calcium carbonate are heated gradually under reflux.  The product is washed with dilute hydrochloric acid and water and distilled under atmospheric pressure and finally under vacuum, (4) methyl alcohol is added to a mixture of diethylene glycol bis-chloroformate and pyridine with stirring.  The product is washed with dilute acid, distilled and decolourized with activated charcoal. Other dichloroformates which may be used include those of alkylene glycols such as tri-, tetra- and pentamethylene glycols, and propylene glycol, and polyglycols such as tri-and tetraethylene glycols, di-, tri- and tetrapropylene glycols and polybutylene glycols.  These may be prepared by reacting the glycol with phosgene. Other dihaloformates such as the dibromoformates may also be used. Other alkaline reagents which may be present include organic bases such as aniline, dimethyl aniline and quaternary ammonium bases such as tri-methyl phenyl ammonium hydroxide or inorganic bases such as the oxides, hydroxides and carbonates of alkali metals, e.g. sodium and potassium, or of the alkaline earth metals, e.g. calcium, barium, strontium and magnesium.  The Specification as open to inspection under Sect. 91 (4) describes the reaction of polyhaloformates derived from polyhydroxy aliphatic compounds in general (many other than glycols being specified) with hydroxy compounds including high molecular weight, unsaturated, aromatic, polyhydric and/or substituted alcohols (examples of all of which are specified). The detailed examples include reactions of methallyl, allyl and 2-chloroallyl alcohols with dichloroformates.  This subject-matter does not appear in the Specification as accepted.
Patent GB-176767-A (GB)
Title: Chuck jaw composed of several hingedly connected parts
IPC: B23B31/10
Filed: 1922-02-13
Abstract: 176,767. Alit.-Ges. vorm. A. Finze & Co. March 9, 1921, [Convention date]. Chucks.-In chuck-jaws of the type in which lunar segments are successively articulated to enable the gripping members to conform readily to the article held, means are provided to lock the elements in their adjusted positions. A step a on the carrier D is grooved at b and formed with a dovetailed projection which is engaged by the undercut portion c of the jaw C, so that the latter may oscillate about a centre o, Fig. 1. A flanged ferrule e is supported in a recess in the jaw C by a spring i and may be tightened to lock the jaws by means of a headed screw h. For providing frictional resistance to oscillation without positively locking the jaws, a spring-pressed bolt l, Fig. 3, may be employed, the bolt being secured by a set-screw.
Patent GB-495846-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J5/06
Filed: 1937-02-12
Abstract: 495,846. Thermionic rectifiers. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 12, 1937, No. 4223. Void. Convention date, Feb. 12, 1936. [Class 39 (i)] To prevent a continuous film of sputtered material being formed on the envelope of a gas filled rectifier, the envelope may have a portion 11 of wider diameter than those 1, 1<1> enclosing the anode 5 and cathode 9. The latter may be of the kind described in Specification 309,447, [Class 39 (i)], rings 6 to shield the stem 2 are mounted on the anode lead 4. In another arrangement spaced rings may be placed against the envelope opposite the discharge space. As shown in Fig. 3, concentric shield cylinders 29, 30 inside the envelope surround both anode 26 and cathode 28 ; an electrostatic control electrode 27 with lead 27<1> is placed in the discharge path and a further outside control ring 32 may be used. In a further construction two enlarged envelope portions such as described with reference to Fig. 1, are formed along the envelope and are used with a central electrostatic control electrode ; a discharge control grid is placed about a filamentary cathode.
Patent GB-1165091-A (GB)
Title: Synhronous Motor
IPC: G04C3/16
Filed: 1968-01-29
Abstract: 1,165,091. Electric motors. KIENZLE UHRENFABRIKEN G.m.b.H. 29 Jan., 1968 [3 Feb., 1967], No. 4429/68. Heading H2A. In an electric motor having fixed pick-up and running coils connected to a transistor amplifier and interacting with a permanent magnet rotor, self-starting is ensured by splitting the rotor into two angularly spaced sections interconnected by a spring so that a torsional oscillation between them initiates starting. The coils are coreless. As shown in Fig. 1, rotor magnets 5 lie on either side of flat pick-up and running coils 1, 2, automatic self-starting being ensured by auxiliary rotor 9 linked to the upper rotor 4 by spring 6. The driving and starting rotors may be interchanged (Fig. 7, not shown). In order to save axial space, the two rotors may be set in the same plane (Figs. 3-6, not shown). In a further modification, Fig. 8, cylindrical permanent-magnet rotors 4<SP>11</SP> and 9<SP>11</SP> are each free on the spindle but coupled to it through springs 6, 6<SP>1</SP>. A single driving coil 21 embraces a chord of both rotors and a pick-up coil 1 likewise embraces the top rotor.
Patent GB-1384993-A (GB)
Title: Fuel injection pump
IPC: F02M59/46
Filed: 1973-01-29
Abstract: 1384993 Fuel injection pumps FRIEDMANN & MAIER AG 29 Jan 1973 [27 Jan 1972] 4436/73 Heading F1A The barrel 5 containing the reciprocable plunger 2 of a fuel injection pump has an inwardly extending rim 8 defining an outlet passage 9, a coaxial delivery valve 6 being in sealing contact with the rim over an annular area 11 having an inner diameter a less than the diameter b of the plunger 2. A valve holder 7 screwed into the body 1 of the pump contacts the valve 6 over an annular area 12 and maintains the contact between the valve 6 and the barrel. The outer diameter c of the area 11 is equal to or smaller than the plunger diameter b. In a second embodiment the inner diameter d of the area 12 is less than the plunger diameter b. In a further embodiment, Fig. 3 (not shown) the areas 11, 12 are frustoconical instead of annular.
Patent GB-104929-A (GB)
Title: Improvements in and appertaining to Apparatus for Reaping or Harvesting Maize, Kaffir Corn and other similar Plants.
Inventor: WYNDHAM HUGH ARCHIBALD
IPC: A01D45/02
Filed: 1916-03-25
Abstract: 104,929. Wyndham, H. A., and Whytock, J. March 25, 1916. Cutting vegetables &c.-A machine for reaping and stripping the cobs or grain from maize, kaffir corn, &c., and for cutting up the stripped stalks for fodder, comprises a framework 1, 2, supported on six wheels 4, 8, and carrying cutters 23, a conveyer band 11, a feeding roller 52, crushing rollers 57, 58, stripping knives 63, 64, feeding-rollers 66, and a knife 81 for cutting up the stripped stalk. The plants are pressed against the cutters, of which the movable knife is driven by a crank 27 operated from the lower pulley shaft of the conveyer 11, by blades 19 on a reel 18 driven from the front wheel shaft 8a, the plants being caused to move stalk-first on to a plate 30 leading to the conveyer, by the operation of these blades and of an obetructing-plate 34 arranged as shown in Fig. 1. A plate 31 serves to protect the lower parts of the machine from contact with the stubble, and may also be used to support the cutters. The plants pass from the conveyer on to an inclined table 51, along which they are forced by the adjustable spring-pressed fluted feeding-roller 52 until they are caught between the adjustable crushing-rollers 57, 58. The flattened stalk-ends pass along another table 67 between the knives 63, 64 to the pair of adjustable gripping rollers 65, 66, by which the plants are drawn upwards, the cobs or grain being detached by the knives and falling into a hopper 78 leading to a bagging-compartment 79. The stalks are cut into short lengths by a knife 81 and collected for use as cattle fodder or for conversion into ensilage, or they may be bundled or delivered directly on the ground. The machine may be motor-driven or drawn by animals, the various operative parts of the machine being driven from the land wheels; or an independent motor may be provided for driving these parts only.
Patent GB-432982-A (GB)
Title: Improvements relating to apparatus for drying fabrics in the open width
IPC: F26B13/10
Filed: 1934-02-10
Abstract: 432,982. Drying fabrics. NORTON & CO., Ltd., SIR J. F., and NORTON, D. G., Adelphi Iron Works, Salford. Feb. 10, 1934, No. 4497. [Class 34 (ii)] Apparatus for drying fabrics in the open width comprises upper and lower hot air chests with walls of sheet material perforated with a large number of holes, through which the hot air is directed on to and uniformly distributed over the fabric, and a fan and air heater or heaters delivering heated air past air control dampers or valves to the chests and withdrawing air from adjacent the cloth selvedge and from within a casing surrounding the air chests and through which the cloth travels. In the construction shown, the fabric a to be dried passes between air chests c, d each having a perforated side e. The chests are supplied with air delivered by a fan f and passing through heaters i. A casing p enclosing the chests communicates through openings j, k with the suction side of the fan. Dampers n, u are provided for controlling the flow of air to the chests. In a modification the fan is arranged below the casing p and the air for the chests is heated by a common heater at the suction side of the fan.
Patent GB-490147-A (GB)
Title: Improvements in or relating to insulated electric cables
IPC: H01B3/18
Filed: 1937-02-15
Abstract: A viscous or semi-liquid substance consisting mainly of polymerized aliphatic mono-olefines is used as a filling or pressure-equalizing material for submarine electric cables. Isobutylene dissolved in butane may be polymerized in an autoclave under pressure using boron trifluoride as a catalyst. The polymer may be mixed with 2-20 per cent of purified rubber, paraffins, petroleum hydrocarbons, gutta percha or balata.  The molecular weight of the polymer may be from 1000 to 15000: the desired properties may be produced by polymerization to the required degree or by the mixture of two or more separately polymerized products.
Patent GB-1397184-A (GB)
Title: Method and apparatus for transferring heat to or from material
IPC: F27D99/00
Filed: 1973-01-30
Abstract: 1397184 Fluidized bed heat-treatment; cooling and freezing apparatus COMMONWEALTH SCIENTIFIC & INDUSTRIAL RESEARCH ORGANIZATION 30 Jan 1973 [15 Feb 1972 4 May 1972] 4625/73 Headings F4B and F4U In apparatus for heat-treating substances, e.g. heating, cooling, freezing, chemical reactions or ore treatment, placed in an inner vessel 21, Fig. 1, mounted within a housing 11 the vessel is at least partially floated on or in a fluidized bed 18 of solid particulate material and the heat transfer is effected between the vessel and the bed of material. The material is heated or cooled. The fluidizing gas, by circulation through a heat exchanger mounted externally of the apparatus, Fig. 13, not shown. The vessel is rotated or oscillated by means not shown and the substance is fed thereto through an inlet 24a and outlet 26a for either continuous or batch processing. The vessel may be of various crosssectional forms, e.g. circular, polygonal or fluted and of cylindrical or frusto-conical configuration with internal lifter blades or helical baffles to enhance flow therethrough. The inner vessel may be attached to the outer housing for rotation or oscillation therewith. In the embodiment of Fig. 14, fluidizing gas is fed to rows of inlet tuyeres 127 passing through the wall of the housing 118 which is cylindrical. The vessel 111 may be mounted on tangential leaf members 126, which allow limited relative movement, and it floats, wholly or partially, on the fluidized bed 131. Each tuyere has a control valve, the valves of the lower tuyeres being opened by a semicircular cam track 134 as the housing rotates. The bed material 131 spills out from the housing into a reservoir at one end and is pumped back via heat exchanger, being returned to the other end of the housing through ports in the bearing shaft.
Patent GB-792763-A (GB)
Title: Improved fluid coking process
IPC: C10G9/32
Filed: 1955-02-16
Abstract: <PICT:0792763/III/1> A process for treating petroleum oils comprises injecting a high-boiling oil into a coking zone having a pressure sufficient to maintain substantially all hydrocarbons boiling above an endpoint in the range of 500-900 DEG  F. in the liquid phase and containing finely-divided particulate solid having a temperature in the range of 850-1100 DEG  F., withdrawing vaporous effluent from said coking zone as product, circulating a portion of said finely-divided coke along with adhering liquid hydrocarbons to a stripping zone containing a mobilized mass of particulate solids, passing a fluidizing gas upwardly through said stripping zone counter-current to said particulate coke to remove liquid hydrocarbons adhering thereto removing vapours from the stripping zone, passing particulate coke from the lower portion of said stripping zone to a combustion zone, and returning heated coke particles from the combustion zone to the stripping zone.  The heat carrying medium may be steam actuated carbon, silica gel or kieselguhr.  In a preferred embodiment, a highly aromatic crude oil supplied by line 1 is preheated by direct contact with overhead vapours from coker 6 in line 2 and the products boiling below 700 DEG F. are flashed off through line 4.  The coker 6 is operated at about 900 DEG  F. and 50 p.s.i.g. and contains a dense fluidized bed of particulate coke of about 40-800 microns, steam or other fluidizing gas being admitted by line 7.  In stripping zone 8 the fluidizing stream serves to strip the hydrocarbon from the coke which is withdrawn as product by line 9.  Unstripped coke passes to the secondary cracking zone 11 where stripping is completed by means of steam from line 12.  The zone 11 is maintained at a temperature of about 1050 DEG  F. by means of high temperature solids supplied through line 23.  The aromatics removed by the stripper are transferred by line 13 to a tar separator 14 where an aromatic tar fraction boiling above 700 DEG  F. is separated and removed by line 15.  A portion of the tar may be cooled in heat exchanger 24 and recycled by line 25 as reflux.
Patent GB-266373-A (GB)
Title: Improvements in press tables for brick presses
IPC: B28B7/00
Filed: 1927-02-19
Abstract: 266,373. Ackermann, H., and Scheid. hauer & Giessing Akt.-Ges. Feb. 20, 1926, [Convention date]. Stationary - mould presses.-Press tables of machines for pressing bricks or the moulding- boxes carried thereby, of the kind provided with interchangeable walls so as to form a number of individual moulds the size of which can be varied, are fitted with interlocked side and end liners for each mould. Figs. 1 and 2 show a press table having two fixed side members 1, 2 spaced by bolts 11 with which cross members 3 spaced by end liners 16 have a sliding connection. Bolts 12, 13 secure the members 3 in position and the length of the members 16 fixes the size of the mould. Side liners 15 have projecting ends fitting the recesses in the members 1, 2 and also closely engaging recesses in the members 16. Various forms of liners for the longitudinal members 1, 2 are described, including inclined liners and walls for producing wedge-shaped key blocks for arches. Figs. 7 and 8 show a separate moulding box, the side members 1, 2 of which are secured by bolts 26 to the press table. The transverse members 3 and liners 16 are secured in the members 1, 2 as in the prior constructions.
Patent GB-492521-A (GB)
Title: Improvements in or relating to the formation of protective layers on iron and steel articles
IPC: C23C10/42
Filed: 1937-02-17
Abstract: A layer of chromium or chromium alloy is formed at the surface of an iron or steel article by treating it at a temperature of 900 DEG  C. or over with a gaseous mixture formed by passing a continuous stream of hydrogen and hydrogen chloride over heated chromium or chromium alloy, e.g. ferrochrome.  The gas stream preferably contains more hydrogen than hydrogen chloride and the reaction between the gas stream and the chromium &c. or between the resultant gas mixture and the article may take place in the presence of silicon or silicon compounds such as sand, quartz, or ferrosilicon.  The chromium or chromium alloy and the articles may be in the same or in separate vessels; in the former case one or both may be enclosed in perforated containers.  The vessels or containers may be rotated.  The gas stream may be produced by passing hydrogen through fuming hydrochloric acid, and one or both of the constituents of the mixture or the mixture itself may be dried, e.g. by bubbling through concentrated sulphuric acid.  The heated articles may be first treated with hydrogen alone to remove surface impurities such as oxides.  The Provisional Specification refers also to the use of hydrochloric acid gas without hydrogen.
Patent GB-781790-A (GB)
Title: Improvements in or relating to the production of n-substituted o-diamines
Inventor: LANE EDWARD SYDNEY
Filed: 1955-02-18
Abstract: N-aryl o-diamines are prepared by reacting an aryl lithium compound with a benzo 2:1:3 thiadiazole or selenium or oxygen analogue, which is preferably dissolved in an inert organic solvent, e.g. diethyl ether.  This solution is added slowly to the lithium compound which is in excess (3 mols. lithium compound to 1 mol. thiazole).  Thio or seleno ethers are also produced when thiadiazoles or the corresponding selenium compounds are used. The final diamine product is separated out by mixing the reaction product, which is probably a lithium-containing intermediate product, with water, and running off the ether layer.  Examples are given for the preparation of N-phenyl-o-phenylenediamine from benzo 2:1:3 thiadiazole or selenadiazole and phenyl lithium, 2-anilino triphenylamine from benzfurazan and phenyl lithium, and of 2-amino-3-anilino quinol diethylether from 4,7-diethoxy benzo 2:1:3-selenadiazole and phenyl lithium.  The selenadiazole compound may be obtained by heating 2:3-diamino quinol diethyl ether hydrochloride and selenious acid in water.