baber/WOPTO huggingface dataset:
Patent GB-380863-A (GB)
Title: Improvements in or relating to the cooling of mercury rectifiers having glass envelopes
IPC: H01J13/32
Filed: 1931-07-01
Abstract: 380,863. Mercury-vapour rectifiers. SOC. ANON. HEWITTIC and DEMONTVIGNIER, M., 11, Rue du Pont, Suresnes, Seine, France. July 1, 1931, No. 19003. Convention date, July 3,1930. [Class 39 (i).] Cooling means for glass rectifiers comprises a fan, so positioned that the cooling fluid first flows over. that portion of the envelope which has the largest diameter, baffles for deflecting the fluid towards the envelope, and a doublewalled anode branch which is protected against cooling. Figs. 3 and 4 show shapes of envelopes and the arrangement of the baffles. A hollow anode 19, Fig. 5, is mounted within double walls 20, 22. The inside of the glass or metallic tube 20 is blackened in order that it may reach quickly the operating temperature, and the outside is given a polished metallic coating to reduce radiation. The tube 20 may be closed by a tube 23 which is carried by the leading-in wire, or by a disc or cup. A polished metallic sheet 26 on the tube 22 restricts radiation and is connected to the anode leading-in wire to facilitate starting. In a modification, a condensing chamber is formed by the annular space between walls 33, 34, Fig. 8, the tube 34 being held by springs 29, 31. The tube 34 may be closed at its inner end and provided with an opening in its side for the arc path. The fan propeller may consist of vanes attached to a disc and the fan motor may be located between the propeller and the rectifier or on the side of the propeller remote from the rectifier. An automatic heating device may be provided and control grids may be fitted in the anode branches.
Patent GB-139536-A (GB)
Title: An improvement in internal combustion engines of the single-acting, double piston, two-stroke type
IPC: F01B7/08
Filed: 1918-11-20
Abstract: 139,536. Humphrey, J. F. Nov. 20, 1918. Pistons, attaching to and detaching from rod.- In an internal-combustion engine having oppositely-moving pistons, which slide one over an extension of the other, the central connecting-rod is secured to a gudgeon-pin carried by a cylindrical member Q fixed to the piston P, the rods connected to the other piston being secured to gudgeon-pins mounted in a ring T. The piston P is constructed with a cover plate N which bears upon the periphery of the piston and against a ring R through which pass holding down bolts x. Reference has been directed by the Comptroller to Specifications 13889/08, 2322/13, and 13217/15, [Class 7 (ii), Internal-combustion engines, Arrangement &c. of.].
Patent GB-314496-A (GB)
Title: Apparatus for removing water particles from steam turbines
IPC: F01D25/32
Filed: 1929-06-20
Abstract: 314,496. Skoda Works, Plzen. June 28, 1928, [Convention date]. Addition to 282,106. Condensation water, collecting and draining.- In an arrangement for removing water particles from steam turbines as described in the parent Specification, the rings 51, 51<1>, 39 upon which the water deflecting surfaces are formed are interconnected by webs 53 to form a single unit which is mounted in the turbine. Several forms of deflecting channels are described.
Patent GB-190666-A (GB)
Abstract: 190,666. Woodcock, G. H. Feb. 15, 1922. Folding and collapsable tables.-In a stool or table of the double-fold type, the half-legs B, C are each provided with a lip L, so that when the frame is in the open position the lips embrace the half-legs A, C on both sides, and rigid legs are formed when weight is applied to the canvas or table top F, which is permanently attached to the leg A, and is hooked to the leg C. As shown in Fig. 1, the lips are oppositely disposed and the legs are made to fit inside one another for convenience in folding for packing and transit.
Patent GB-959472-A (GB)
Title: Improvements in or relating to plasma jet torches
Inventor: DEWSNAP GEORGE GARSIDE
IPC: B05B7/22
Filed: 1961-05-26
Abstract: 959,472. Spraying fusible materials. H.M. PRINCIPAL SECRETARY OF STATE FOR THE WAR DEPARTMENT. Aug.24; 1962 [May 26, 1961], No. 19068/61. Heading B2F. A spray torch for spraying fusible material comprises a plurality of nozzles 1 and known means for producing a plasma jet from each nozzle, the nozzles being so arranged that the jets converge forward thereof to form a combined jet, means 7 being provided for feeding material 5 from the rear into the combined jet. Each nozzle 1 has a central electrode member 8, separated by an insulating ring 9, and is water cooled. The flow of the combined jet may be smoothed by an additional nozzle 4. In the described embodiment there are four nozzles 1 equally spaced and with their jets converging to the apex 2 of a hypothetical cone. The nozzles' axes 3 may be at a slight angle to the cone to induce swirling into the plasma stream. The material 5 may be a rod or material compacted into rod form, which may be rotated as it is fed. Alternatively a powder or mixture of powders may be fed in a stream of gas or liquid. The minimum number of nozzles is preferably three. The nozzles may be arranged on one hypothetical cone or on the surfaces of two or more coaxial cones of different apex angle. If an additional nozzle 4 is used it may be kept at a negative potential with respect to the nozzles 1 to increase the energy of the plasma.
Patent GB-186458-A (GB)
Title: Improvements in the manufacture and production of metallic nickel from nickel carbonyl, and apparatus therefor
IPC: C22B5/20
Filed: 1921-07-14
Abstract: 186,458. Fierz, H. E., and Prager, H. A. July 14, 1921. No Patent granted (Sealing fee not paid). Dry processes of extracting nickel.-Nickel is deposited from nickel carbonyl by passing the gases containing the nickel carbonyl between a number of parallel heated surfaces arranged close together, say from ¢ to 1 inch apart. The apparatus shown comprises a chamber 1 containing parallel hollow plates 2 through which heating- gases flow and between which the carbonyl gases are passed.
Patent GB-900754-A (GB)
Title: New polycyclic guanidines and process for their manufacture
IPC: C07D217/04
Filed: 1960-05-30
Abstract: The invention comprises an alkyleneimino-C1\7-alkyl-guanidine in which the alkylene-imino group contains 4 to 9 ring carbon atoms and one or two fused-on isocyclic aromatic nuclei and in which the C1-7-alkyl radical separates the imino group from the guanido group by 1 to 5 carbon atoms, and in which each of the guanido group and the non aromatic rings may be substituted by at least one alkyl group and each of the aromatic rings may be substituted by at least one alkyl and/or alkoxy group and/or halogen atom or an acyl derivative and/or a quaternary ammonium compound and/or an acid addition salt thereof, preparation thereof by reacting a corresponding alkyleneimino-alkylamine or a salt thereof with an S-alkyl isothiourea or a salt thereof, and, if desired, acylating the resulting product or forming a salt thereof, and pharmaceutical compositions containing them.  2 - [1,2,3,4 - Tetrahydro-isoquinolyl-(2)]-ethyl-amine is prepared by condensing 1,2,3,4-tetra-hydroquinoline with chloracetonitrile and reducing the 1,2,3,4-tetrahydro-isoquinolyl-(2)-acetonitrile. 2-[1,2,3,4-Tetrahydroquinolyl-(1)]-ethylamine, 2-(2,3-benzo-2,3-dehydro-hexylene-imino)-ethylamine, and 2-(2,3;6,7-dibenzo-2,3; 6,7 - bis - dehydro - hexyleneimino)-ethylamine were similarly prepared through the nitriles.  2 - (4,5-Benzo-4,5-dehydro-hexyleneimino)-ethyl-amine is prepared by hydrogenating 1,2-di-cyanomethyl-benzene to give 4,5-benzo-4,5-dehydro-hexyleneimine condensing this with chloracetonitrile and reducing the nitrile. 3-Isoindolinyl-(2)-propylamine is prepared by condensing isoindoline with acrylonitrile and reducing the b -isoindolinyl-(2)-propionitrile so formed.  Pharmaceutical compositions useful as antihypertensive agents comprise the guanidines of the invention in admixture or in conjunction with a pharmaceutical organic or inorganic solid or liquid carrier suitable for enteral or parenteral administration. The compositions may contain other therapeutically active compounds.
Patent GB-117031-A (GB)
Title: Improvements in connection with Belt Driving Mechanism.
Inventor: BUTLER HAROLD
IPC: G05G5/18
Filed: 1917-12-29
Abstract: 117,031. Butler, H., Butter, H., and Hayhurst, R. H. Dec. 29, 1917. Levers, locking.-A lever for operating a device for moving a driving-belt on fast or loose pulleys is formed with rack teeth engaging teeth 4 on a fixed bracket 5. The lever 1 is automatically locked in its two positions and is released by drawing it slightly forward.
Patent GB-838298-A (GB)
Title: Improvements in or relating to electric protective relay devices
Inventor: CHRISP GEORGE FRANCIS
IPC: H02H3/08
Filed: 1956-06-21
Abstract: 838,298. Protective cut-out arrangements. REYROLLE & CO. Ltd., A. June 21, 1956, No. 19252/56. Class 38 (5). A protective device comprises a heater element A energized from the protected circuit and acting to generate heat in accordance with the current flow in such circuit, and a relay network with a relay C in a sealed case and in series with a temperature-sensitive resistor B exposed to the heat generated by the heater A. The resistor and relay may be supplied from a separate source or (as shown) connected in parallel with the heater so that under short-circuit conditions the relay C will operate without waiting for the effect of the heat generated. The resistor B has a negative temperature coefficient and a further resistor F having a similar coefficient may be connected across the relay C to provide ambient temperature compensation. A variable resistor E is provided for current setting. A resistor B having a positive temperature coefficient may be used, connected in parallel with the relay coil.
Patent GB-516584-A (GB)
Title: Manufacture of colour photographs
IPC: G03C7/20
Filed: 1938-06-29
Abstract: 516,584. Colour photography. GROVES, W. W. June 29, 1938. Convention date, June 30, 1937. [Class 98 (ii)] A bi-pack film comprising two silver halide emulsion layers separated by a colour filter layer stable to photographic baths on one support and a single emulsion layer on the other support, is exposed, and the two layers on the single support are then developed and fixed and the resulting silver images converted into. silver halide. These silver halide images are then separately exposed with the aid of the filter layer and converted into colour images, the filter dyestuff. being bleached after the production of at least one coloured image. In an example, the blue and green sensitive layers are arranged on the same side of one support with an intermediate filter layer containing the dyestuff from diazotized aniline and 1-(parasulphophenyl)-5-pyrazolone-3-carbonic acidethyl ester. The red sensitive layer is mounted on the other support, and is in contact with the other sensitive layers during exposure. After exposure, the double layer is developed and fixed and the silver images are converted into silver bromide by treatment in a bath of ammonium persulphate and potassium bromide. The blue component layer is then exposed to blue light and developed to a yellow picture, the colour filter is bleached with a solution of sodium hydrosulphite and potassium bromide, and the green component layer then exposed and developed to give a purple image. The silver is removed by potassium ferricyanide and potassium thiosulphate. The red sensitive layer is developed to give a negative. Conversion of the silver component images can alternatively be to silver chloride. If the silver images are converted into silver iodide, the first layer, after exposure to blue light, is developed, converted into silver bromide or chloride and colour developed. The silver iodide in the second layer is coloured purple by mordant dyeing. If the filter dyestuffs are of the diazo-amino class, they are destroyed by acids. Specifications 459,665, 461,006, and 486,424 are referred to.
Patent GB-802268-A (GB)
Title: Improvements in or relating to pneumatic tyres
Inventor: JONES FRANK BERNARD
IPC: B60C11/03
Filed: 1955-07-05
Abstract: 802,268. Pneumatic tyres. DUNLOP RUBBER CO., Ltd. June 21, 1956 [July 5, 1955], No. 19341/55. Class 144 (2). To reduce the tendency to " break away " of the tyres during cornering of a vehicle, a pneumatic tyre is provided with smoothly rounded shoulders 6 which in cross-section provide a continuous smooth curve with the tyre crown 7, and a circumferential knife cut, or series of knife cuts 9, are formed in each shoulder, the or each cut 9 being inclined for the major portion of its length at an angle of from 30 to 60 degrees to the mid circumferential plane of the tyre. As shown, the shoulders 6 each have a series of cuts 9 which extend from their axially outer portions to the adjacent grooves 3 separating the shoulders from the inner tread ribs 2 at an angle of 60 degrees to the circumferential, each cut 9 being linear except for a central V-shaped portion. In an alternative arrangement, a single circumferential zig-zag cut may be provided, the branches of which extend at 45 degrees to the circumferential and the corners of which are rounded. Fig. 4 shows a further arrangement wherein the shoulder cuts are arranged in a repeating series, each series comprising alternating long, intermediate and short cuts 13, 15, 14 respectively with the cuts 15 connecting into the adjacent rounded peak portions 11c of a 45-degree zig-zag circumferential cut 11.
Patent GB-1373040-A (GB)
Title: Injection moulding machines
IPC: B29C45/28
Filed: 1972-04-26
Abstract: 1373040 Injection moulding machine KKAUSS-MAFFEI AG 26 April 1972 [4 May 1971] 19345/72 Heading B5A In a device having passages 16-21 for distributing material from an injection cylinder to several moulds through nozzles 4 which are provided with sealing surfaces 12 for engaging corresponding surfaces of the moulds 3, the parts carrying the sealing surfaces are individually movable into sealing engagement with the moulds to avoid poor sealing due to alignment errors by pressing devices which can operate in sequence or together. A distributer 1, 2 has a central passage 16 dividing into four or six passages 17-20 each leading to a nozzle head 5 closed by a needle 22. The nozzle is opened by pressure of the material being injected pushing on conical surface 42 of the needle. Hydraulic oil is pumped into cavity 38 to cause piston 28 to return the needle and close the nozzle orifice 6. In Fig. 3 the sealing surface 12 of nozzle head 5 is pressed against the end plate 8 of mould 3 by a piston 31 operated by oil entering a chamber 36. The piston urges in turn a bush 29, a bush 23, the portion of the distributer carrying the nozzle head 5, and the nozzle head itself towards the mould. Cooling water is circulated through passage 41 in part 33 and the end plate 8 is cooled by means not shown. Some of the material being injected enters the space 9 between the nozzle head 5 and the end plate 8 to provide thermal insulation. The sealing surfaces 12 can be formed on the distributer 1, 2 or on separate members fixed to the distributer, e.g. a bush passing through the distributer and having an annular channel on the end engaging the mould end plate 8 to increase thermal insulation. In Fig. 4 the piston 28 for closing the nozzle moves in a bush 46 fixed in part 33 and the nozzle head 5 is slidably in the distributer and guided by bolts 45. The pressure of the injected material acting on the conical surface 51 of the nozzle head urges it against the mould. In another embodiment (Fig. 5, not shown) a nozzle head 5 slidably mounted in the distributer 1, 2 is pressed into engagement with the mould end plate 8 by a piston 31 as shown in Fig. 3.
Patent GB-145294-A (GB)
Title: Improvements in or relating to two stroke internal combustion engines
IPC: F02B75/24
Filed: 1919-08-06
Abstract: 145,294. Berg, K. A. T. Aug. 6, 1919. Regulating.-An engine using crank-case compression has a combustible mixture inlet port 7 controlled by a non-working piston 5, and an air inlet passage controlled by a non-return valve 14 between which and the passage 9 is an adjustable regulating-valve 12. The air enters the working cylinder in advance of the combustible mixture.
Patent GB-624090-A (GB)
Title: Improvements in or relating to closed vessels such as electric discharge tubes or incandescent lamps
IPC: C03C27/10
Filed: 1946-06-28
Abstract: 624,090. Glass-to-metal seals. PHILIPS LAMPS, Ltd. June 28, 1946, No. 19380. Convention date, May 20, 1942. [Class 36] [Also in Groups XXIII and XL (a)] Glass and metal members are hermetically secured together by means of a layer of glaze having a cellular but vacuum-tight structure. The coefficient of expansion of the sealing material is preferably of the same order as that of the parts to be joined. Low melting-point material such as described in Specification 2465/46 (as open to inspection under Sect. 91) may be used, the cellular structure being obtained by limiting the temperature or the time of sealing; e.g. a 0.2 mm. layer in powder form mixed with water may be applied to the foot of an electric discharge tube or incandescent lamp which is then heated to not more than 580‹ C. for 2 mins.; the bulb is subsequently positioned and sealed on by heating to 480‹ C. for 2-3 mins.
Patent GB-404316-A (GB)
Title: Improvements in means for comparing the timing of a frequency controlling clock withthat of a standard clock
IPC: G04C15/00
Filed: 1932-07-08
Abstract: 404,316. Electric clocks. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitats-Ges.; 2, Friedrich Karl-Ufer, Berlin.) July 8, 1932, No. 19387. Convention date, July 11, 1931. [Class 139.] The deviation of the timing of a clock controlling the frequency of an electrical network, from a standard clock, is indicated by a pointer coupled with the planet member of a differential mechanism, one side of which is driven by a synchronous motor connected to the network and the other side electromagnetically by the standard clock. The pointer b which indicates the deviation on a dial a having seconds scales for frequencies both higher and lower than normal, is connected to the planet wheel c, of a differential mechanism c, d, e, the sun wheels d, e being driven through gearing by a synchronous motor f, and by a known step-bystep mechanism g actuated each second by contact mechanism i at the standard clock h, respectively. Comparing clocks m, n driven respectively by the standard clock h and by the synchronous motor f are also provided.
Patent GB-274890-A (GB)
Title: Hydraulic braking apparatus for trailer vehicles
IPC: F16D65/28
Filed: 1927-07-21
Abstract: 274,890. Charles, M. July 23, 1926, [Convention date]. Fluid-pressure.-Hydraulic brake systems for operating the brakes of trailer vehicles from the tractor vehicle are provided with a coupling device comprising a pair of pistons for transmitting the fluid pressure from the piping on the tractor to that on the tractor. A device for applying the brakes on an uncoupled trailer is also described. The system shown is of the kind described in Specification 250,596 and comprises a pressure-producing device b on the tractor vehicle of the type described in Specification 255,454. The pressure is transmitted by the pipe c<1> to the tractor brakes. The pipe c<2> is connected to the coupling device for the operation of the trailer brakes. This device comprises a casing f secured to the frame member g of the tractor and a casing connected to the casing by a bayonet joint or other readily detachable device. The joint comprises projections k on the casing j which are passed through slots in a shoulder m on the casing f, relative rotation of the parts being prevented by a pin n. Disposed in the casing f is a piston h<1> the rod of which engages that of a piston h<2> working in the casing j which has a flexible hose connection c<3> with the pipe c<4> of the trailer brake system. The pistons have a fluid-tight bellows attachment with the respec.- tive casings as described in Specifications 250,596; and 268,345, [Class 122 (i), Engine and like cylinders &c.]. The pressure produced in the pipe c<2> in applying the brakes is thus transmitted by the piston h<1> to the piston h<2> and by this piston to the liquid in the trailer brake system. To permit of the operation of the brakes on the trailer when it is uncoupled there is provided a cylinder P<1> communicating with the pipe c<4> and containing a piston p<1> which can be operated by a lever q and an eccentric q<1> engaging a roller p<x> on the rod of the piston. To adjust the initial pressure or the quantity of liquid in the trailer brake system there is provided a second cylinder P<2> in which works a piston p<2> operated by a nut p<3> engaging the screw-threaded rod of the piston. The nut is turned by the head q<2>.
Patent GB-765930-A (GB)
Title: Non-metallic fuzes
IPC: F42C7/06
Filed: 1952-07-31
Abstract: 765,930. Storing gases under pressure. MONTECATINI SOC. GENERALE PER L'INDUSTRIA MINERARIA E CHIMICA. July 31, 1952 [Aug. 4, 1951; Oct. 24, 1951], No. 19425/52. Class 8(2) [Alsa in Group XXI] A fuze for a non- metallic land mine comprises a detonator 10, a striker 8, and an ampoule 6 adapted, when fractured, to release gas under pressure, the gas serving to drive the striker towards the detonator. shell and is 'The ampoule has a frangible shell and is made by introducing into the shell a substance or mixture of substances in a condensed state, the substance or substances being such as to enable the gas to be generated after the shell has been closed; the quantity of gas and the rate of generation can be controlled externally. In a particular example, a predetermined volume of commercial hydrogen peroxide of 100 volumes concentration is introduced into a glass ampoule, the quantity being sufficient to produce the required pressure. The ampoule is then cooled to 0‹C. and its contents alkalised, and the neck of the ampoule is then welded by flame. Subsequently the ampoule is immersed in a water bath and brought to a temperature of 40‹C., this serving at first to initiate and later to restrain the decomposition of the hydrogen peroxide. A suitable gas pressure is within the range of 1 to 30 atmospheres. Specification 765,931 [Group XXI], is referred to.
Patent GB-861393-A (GB)
Title: Improvements relating to motorised agricultural implements
Inventor: DRAKE RODNEY SHUTTLEWORTH
IPC: A01D34/08
Filed: 1958-06-19
Abstract: 861,393. Mowing machines. WOLSELEY ENGINEERING Ltd., and DRAKE, R. S. June 17, 1959 [June 19, 1958], No. 19585/58. Class 6(3). Relates to a motorised agricultural implement of the kind having its engine 4 mounted on a pair of parallel longitudinal angle-section mountings 5 with a longitudinal groove 8 between their vertical flanges 7. The invention comprises a detachable tool 10 having a rearward tubular extension 9 fitted with shockabsorbing rings 16 which engage the inner surfaces of the flanges. In a modification, the flanges are provided with rubber blocks which engage the tube 9. The tool comprises a mowerbar 12, the moving blade 11 of which is reciprocated by a pitman 13 and rocker from a crankdisc driven by the engine. Specifications 714,394 and 847,292 are referred to.