baber/WOPTO huggingface dataset:
Patent GB-212328-A (GB)
Title: Improvements in reinforced concrete road foundations
IPC: E04C5/06
Filed: 1922-12-15
Abstract: 212,328. Major & Co., Ltd., and Sangwin, W. Dec. 15, 1922. Reinforced concrete.-Reinforcements for concrete road foundations, of the kind comprising a metal skeleton built up of two or more horizontal network sections a connected by vertical strut members b disposed at the points of crossing of the members forming the network, are also provided with diagonal members c extending between the extremities of certain of the vertical members. The vertical strut members may be articulated to the network sections to permit of collapsing the skeleton.
Patent GB-1496123-A (GB)
Title: Ignition distributor for an internal combustion engine
IPC: F02P7/02
Filed: 1976-08-18
Abstract: 1496123 Rotary ignition distributors ROBERT BOSCH GmbH 18 Aug 1976 [19 Aug 1975] 34337/76 Heading H1N In an ignition distributor for an internal combustion engine an apertured insulating disc 19 is clamped between the flange 24 of the cap 16 and the rim 14 of the housing 13 to provide a longer creepage path between the cap space and housing space and impede electrical shunts. The radially outer region of the plate 19 may have an integral ring 26 engaged in a groove 25 in the flange 24 to provide a labyrinth barrier. A similar radially inner barrier 20, 23 may also be provided between the rotor 11 and the plate 19.
Patent GB-966611-A (GB)
Title: Protective arrangements for electrical circuits and apparatus
IPC: H02H11/00
Filed: 1961-09-26
Abstract: 966,611. Protective arrangements. M. C. GERRARD. Sept. 22, 1962 [Sept. 26, 1961], No. 34366/61. Addition to 880,238. Drawings to Specification. Heading H2K. The protective arrangement of the parent Specification is modified in that the bridge circuit is connected between the line conductor and an independent earth.
Patent GB-922165-A (GB)
Title: Change-speed gear particularly for a machine tool transmission
IPC: F16H3/36
Filed: 1961-09-26
Abstract: 922,165. Change-speed gear. CINCINNATI MILLING MACHINE CO. Sept. 26, 1961 [Feb. 6, 1961], No. 34410/61. Class 80 (2). A change-speed gear for a machine tool such as a lathe comprises a driving shaft 12 upon which is splined for axial movement a gear 24 meshing an idler pinion 44 mounted in a pivoted carrier 42 slidable with the gear 24 along the shaft for selective engagement of the idler with one or other of a cone of driven gears 52, ratio selection being effected by rotation of a knob 54 provided with ratio indicating marks 62, the knob turning a shaft acting through rack-andpinion gearing 58, 60 to slide a carrier 30 mounting the drive gear, the idler &c. along the shaft. The idler carrier 42 rotates within the drive gear carrier 30, and is fast with an arm 34 selectively engaged with pins 36, Fig. 8, when the idler 44 is meshing the cone of gears 52. The arm 34 of the idler carrier 42 also contacts a cam surface 80 upon a ratio establishing member 74 pivoting within the gear housing. Establishment of a ratio selected by turning the knob 54, as described, is effected by turning a lever 90, Fig. 2, to actuate a shaft coaxial with the knob 54 and thereby rotate a cam 82 engaged by a follower carrier by the ratio establishing member 74, which is thus turned about its pivots so that the cam surface 80 forces the end of the arm 34 against the associated pin 36, simultaneously turning the idler carrier 42 to mesh the idler 44 with the selected gear of the cone. The gear cone 52 drives a forward-reverse bevel gear having a selector clutch member 108 slidden for establishment of drive by actuation of a reverse handle 118. A shaft driven from the reverse gear is coupled to a shaft 120 for feed movement of the lathe to a carrier. By turning a handle 144, Fig. 6, against a spring-biased ball detent, a gear 134, Fig. 1, can be slidden in and out of mesh with a gear 146 driven through the reverse gear, for rotation of a lead screw 148 driving the lathe apron.
Patent GB-438631-A (GB)
Title: Improvements in and relating to radio receivers
IPC: H03J1/04
Filed: 1934-11-30
Abstract: 438,631. Wireless receiving-apparatus. DREYFUS, J., 12, Square Alboni, Paris. Nov. 30, 1934, Nos. 34473 and 34474. Convention dates, April 16 and June 8. [Class 40 (v)] [See also Group XXXVI] The tuning dial of a radio receiver is arranged in front of the mouth of the loudspeaker 3, a dial lamp 5 being mounted centrally as shown The aperture in the cabinet 1 is closed by a sheet 4 of organdie or other fabric suitable for receiving printing, while a further sheet 6 of silk crÛpe renders the dial marking invisible except when the light 5 is switched on. The indicator 15 is close to and preferably behind the dial sheet 4 so that its shadow is cast on the dial; the drive is from a pulley 21 on the tuning condenser spindle and the motion is adjusted by shaping the pulleys so that the dial markings are at nearly regular intervals. The pointer may have apertures 15a corresponding to circumferential divisions a<1>, a<2>, a<3>, one for each waveband. Or the pointer may carry a neon tube the illuminated length of which varies according to the waveband in use. The inner surface of the loudspeaker diaphragm 13 may be silvered to act as a reflector.
Patent GB-1298255-A (GB)
Title: A method of manufacture of carbon bodies
IPC: C04B35/528
Filed: 1970-07-16
Abstract: 1298255 Preparing carbon bodies CHARBONNAGES DE FRANCE 16 July 1970 [18 July 1969] 34577/70 Heading C1A [Also in Division C5] A carbon body is prepared by heating a fusible carbon compound in such a manner as to reduce its volatile matter content to a value less than 15%, grinding and shaping, and then bringing the said compound to a temperature at which it has the required plasticity to flow under press to conform with a mould, compressing the compound in a mould which prior to being used is heated up to a temperature lower than that of the sample, and finally carbonizing the moulded compound. The compound used is a high temperature coal-tar pitch and preferably the volatile matter content of the pitch at the end of the first heating stage is in the range 8 to 10%. The elimination of volatile materials may be effected by heating to a temperature in the range 500‹ to 550‹ C. After reducing its volatile content, the pitch may be heated to a temperature in the range 350‹ to 450‹ C. before being compressed. The compression may then be carried out in a mould heated to a temperature in the range 100‹ to 200‹ C. The carbonization may be effected at a rate of increase in temperature lower than 0À5‹ C./min. in the temperature zones 300‹, and 500‹, and 600‹ and 800‹ C. The carbon body may be subsequently graphitized.
Patent GB-345792-A (GB)
Abstract: 345,792. Magnetic interrupters. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and GRIFFITHS, L., Kennington, Biggin Hall Crescent, Coventry. March 5, 1930, No. 7219. [Class 38 (v).] A magnetic contact-breaker for motor cycles &c. comprises a permanent magnet 1 secured to a non- magnetic boss 9 at the end of an engine-driven shaft 10 by a non-magnetic plate 11 so that the poles of the magnet are rotated close to the base of a non-magnetic casing 2 carrying the contactbreaker mechanism. The casing 2 is spigoted into the engine casing so that it may have a limited rotation by the arm 17 for timing purposes and has two soft iron inserts 5 let into the base. As the poles of the magnet 1 come opposite these inserts an armature 4, mounted on the side of the base remote from the magnet is attracted toward them. The armature is carried by a spring blade 12 secured at one end by screws 13 to a block 14 and carrying at the other end a contact 15 which when the armature is attracted is moved away from a cooperating relatively fixed contact 6 to break the ignition circuit. The fixed contact is held adjustably in a bridge member 15 so that the gap between contacts during " break " may be varied. The casing 2 is fitted with a detachable cover 7 held in position by a spring arm 8. As the contactbreaker casing is completely separated from the engine casing the oil therein is prevented from reaching the contact-breaker. The polar projections of the magnet are bent laterally as shown in Fig. 1 so as to move in close proximity to the underside of the contact-breaker casing and in an alternative form in which two current interruptions per revolution are required a magnet having two pairs of poles may be employed. Provision may be made, by means of a centrifugal governor, for automatically advancing the magnet 1 relatively to the shaft 10 so as to provide automatic ignition timing varying with the engine speed.
Patent GB-486795-A (GB)
Title: Improvements in or relating to electron multipliers
IPC: H01J43/20
Filed: 1936-12-16
Abstract: 486,795. Electron multipliers; photo - electric cells. ZEITLINE, V., ZEITLINE, A., and KLIATCHKO, V. Dec. 16, 1936, No. 34621. Convention date, Feb. 8. [Class 39 (i)] An electron-multiplier comprises a number of flat secondarily emissive surfaces which are arranged edgeways in the path of a beam of electrons travelling substantially in the same direction which is focused on to the successive surfaces. In the arrangement shown the secondarily emissive surfaces K1 .. K4 are of cruciform shape, as shown in Fig. 1, and are carried on flat annular accelerating electrodes D1 .. D4; the electron stream is concentrated by means of a coil B on to the emissive surfaces as shown by the dotted lines. The first surface K1 may be coated with photoelectric material and excited by a beam of light focused on it by a lens. In a modification the coil B is omitted and the electrodes K1 ... K4 given a concave shape to produce the required concentration.
Patent GB-919809-A (GB)
Title: Plasticizers for vinyl resins
IPC: C08L27/06
Filed: 1959-10-13
Abstract: A plasticized addition polymer composition contains as plasticizer an ester of the formula <FORM:0919809/IV(a)/1> wherein R is an alkyl, aralkyl, aryl or cycloalkyl radical, n is an integer from 1 to 3, R1 is an alkyl, alkoxyethyl, alkylthioethyl, aryloxyethyl, aralkyl or cycloalkyl radical or a group <FORM:0919809/IV(a)/2> wherein R11 is an alkyl of at least 2 carbon atoms, aralkyl, aryl or cycloalkyl radical and X represents an alkylene, alkenylene, cycloalkylene, cycloalkenylene or phenylene radical. The resin may contain for example 3-200%, preferably 5-150% by weight of the plasticizer and conventional plasticizers may also be incorporated.  The plasticizer may be incorporated in for example a polyvinyl halide, a vinyl ester/vinyl halide copolymer or a vinyl halide/acrylic ester, butyl maleate, vinyl ether, vinylidene chloride or acrylonitrile copolymer. Other suitable polymers specified are those of vinyl alcohol, acetate, acetols, ethers and bromide, vinylidene chloride and acrylic and methacrylic esters.  Other conventional additives such as stabilizers, fillers and pigments may be incorporated in the composition and several examples of plasticized compositions are given.ALSO:The invention comprises an ester of the formula <FORM:0919809/IV (b)/1> wherein R is alkyl, aralkyl, aryl or cycloalkyl radical, n is an integer from 1 to 3, R1 is (a) an alkyl, alkoxyethyl, alkylthioethyl, aryloxyethyl, aralkyl or cycloalkyl radical or (b) a group <FORM:0919809/IV (b)/2> wherein R11 is an alkyl of at least 2 carbon atoms, aralkyl, aryl or cycloalkyl radical, and X represents an alkylene, alkenylene, cycloalkylene, cycloalkenylene or phenylene group. The esters when R1 is a radical under (a) above, may be prepared by esterifying the acid X(COOH)2 or its anhydride with the aryloxyethanol in the absence of a catalyst to produce the half-ester and then esterifying the free carboxylic group with the alcohol R1OH in the presence of an esterification catalyst. Esters where R1 is as defined under (b) above may be prepared by esterifying the acid or anhydride with the aryloxyethanol in the presence of an esterification catalyst to produce the diester. Dicarboxylic acids used include saturated or unsaturated aliphatic acids, aromatic acids, hydroaromatic acids (including endo-methylene compounds), and 4,5-epoxy-cyclohexane-1,2-dicarboxylic acids, and many are specified.  Lists of suitable values for the groups R, R1 and R11 are given and many diesters of the general formula are specified.  Examples describe the preparation of xylenoxyethyl isooctyl phthalate, nonylphenoxyethyl butyl phthalate, di-xylenoxyethyl adipate and sec. butylphenoxyethyl butoxyethyl tetrahydrophthalate.
Patent GB-1418492-A (GB)
Title: Apparatus for moving along or through a material
IPC: H02G1/08
Filed: 1972-12-11
Abstract: 1418492 Propelling vehicles NATIONAL RESEARCH DEVELOPMENT CORP 20 Feb 1974 [11 Dec 1972] 34746/72 Heading B7H [Also in Division E1] A self-advanceable device for moving stepwise along or through the ground (or like material) comprises two parts which are electrically insulated from each other and which each have an electrically conductive outer surface for contact with the ground, the two parts being interconnected by a thrust motor and their surfaces being connectable to a power source by a switching mechanism arranged to connect the surfaces to a power source in an alternating sequence such that each part is alternately anodic relative to the other part and experiences a greater resistance to movement whereby actuation of the motor is effective to shift the other part relative to the one part. The device may be a mole 10 used for underground cable laying, the two parts 16, 18 of the mole being connected by an insulating bellows 20 and an electrical or hydraulic jack 22, each part including a sump 128, 130 in which water which might otherwise short circuit the parts can collect, the water level in the sump being prevented from reaching the top of walls 124, 126 by pumping it away continuously or periodically. The nose part 16 may be divided into insulated angularly-spaced sections each of which, when the nose part is cathodic relative to part 18, can be selectively disconnected from the negative side of the power, the switched out section(s) experiencing a greater resistance to movement than the other section(s) and thereby tending to divert the nose part in a required direction as the jack advances it. The device may alternatively be used in a pipe jacking system in which a train of pipe sections is urged through the ground from a pit, the device constituting the two leading sections of the train and fresh sections being added to the train from within the pit as the train advances. In other forms the device may constitute an intestinal " bug " or a remote-controlled unit for operating in a nuclear environment.
Patent GB-1203638-A (GB)
Title: An improved valve structure
IPC: F15B13/00
Filed: 1967-07-28
Abstract: 1,203,638. Mechanical presses. GRAND VALLEY MACHINE & TOOL CO. 28 July, 1967 [9 March, 1967], No. 34797/67. Heading B5F. [Also in Divisions F2 and G3] A valve structure, for providing constant resistance to the closing of a press or die, comprises a block 16 having an opening 17 therethrough and a main cavity 19 transverse to and intersecting the opening 17; an unloader valve 18 normally preventing flow from the cavity 19 and through the opening 17, a pilot valve 57 controlling the valve 18 and discharging through a bore 34 in the unloader valve, and a check valve 71 closing the main cavity 19. Fluid from the press pistons enters the cavity 19 and acts through bores 39, 40, 28, 62 and 61 on the pilot valve 57 which lifts at a pressure of, say 1000 p.s.i., set by an adjustable spring 63, to discharge fluid through the bore 34 reducing pressure behind a piston 38 on the valve 18 and causing the latter to open. The cavity 19 is now connected to a port 26 leading to a tank in which the fluid is stored under air pressure and from which it is drawn through the check valve 71 on the return stroke of the press pistons. The pilot and check valves are mounted in separate blocks 46 and 64 bolted to the block 16. An air bleeder 76 and a screwed plug 48, which may be replaced by a solenoid-actuated plunger for the pilot valve, are provided. The solenoid may be energized by a limit switch to relieve all resistance at a given point in the operation of the press. Further solenoids may be provided to cause a drop in storage tank pressure simultaneously with the opening of the pilot valve, to delay the return of the press pistons by holding the check valve closed and to operate a booster piston for augmenting return pressure. The press pistons may be actuated in sequence. Flanged portions 43 and 49 on the unloading valve prevent chatter.
Patent GB-842202-A (GB)
Title: Improvements in or relating to hydraulic control valves
IPC: F15B21/08
Filed: 1956-11-14
Abstract: 842,202. Valves. RECHERCHES ETUDES PRODUCTION R.E.P. Nov. 14, 1956 [Nov. 28, 1955], No. 34875/56. Class 135. The closure member of a selector valve is secured to the valve body by flexible means and moves in a plane substantially parallel to two opposed valve faces over which it works. In the first diagrammatic example, Fig. 1, the closure member a has a root c secured to the body d. The parts a and c are connected by a thin neck b about which the part a flexes in a direction parallel to its width. In a variation, Fig. 2, the closure member e is connected by two neck parts b 1  1 to two carrier parts a which are connected by neck parts b to the root c secured to the body d. In a practical example, Fig. 4, the necks b, b 1  are obtained by providing holes h, h 1  and slots l in the member a. The part e constitutes the closure member proper and moves over two faces of members 3, 4, Fig. 6, between two polepieces M 1 , M 2  of a magnet under the action of windings E 1 , E 2 , Fig. 4. The opposed faces of the members 3, 4 have three pairs of interconnected ports, the central pair being connected to the supply port 5 in the member 3, Fig. 8, and the outer pair being connected respectively to working ports 12, 13 in the member 3. The valve is thus balanced. The port 14 is connected externally to a reservoir and internally of the valve to a well 15, Fig. 4, below the closure member which has three transverse passages, the outer two 22, 23, Fig. 6, of which is connected to the central one by inclined passages 21, Fig. 4. The arrangement is such that movement of the closure member to the left, Fig. 6, connects the supply port to outlet 12 and the outlet 13 to the exhaust port 14 whereas movement of the closure member to the right connects the supply port to 'the outlet 13 and the port 13 to the exhaust port 14.
Patent GB-1148558-A (GB)
Title: Piston ring and process for the production thereof
Inventor: KOEHLER MAX
IPC: B23P15/06
Filed: 1967-07-31
Abstract: 1148558 Making piston rings M KOEHLER 31 July 1967 [10 Oct 1966] 34996/67 Index F2T 37E1R [ Also in Division C7] A sintered split piston ring with a higher density on the inner periphery than on the outer periphery is made by compacting a metal powder such as Fe into a ring which has a greater height on its inner periphery than on its outer periphery, sintering the compact, then compressing the sintered ring so that it has the same height over the whole wall thickness, recompacting with a shaped ram so that the ring has a smaller height on its inner periphery than on its outer periphery, grinding to the required uniform height and cutting the slot and thermally stressing the ring. The initial compacting of the powder and the recompacting of the sintered ring produce an inclined annular surface at 15 degrees to the plane perpendicular to the ring axis. In an example a powder mixture fo 92À8% Fe, 3% Pb, 1À2% C, 3% Ni is compacted at 35 tons,sintered at 1080‹C., compacted at 100 tons, and recompacted with a bevelled ram at 80 tons. The density varies from 7À5 g/c.c. to 6À3 g/c.c. at the outer periphery. Chromium or vanadium may also be added to the iron powder.
Patent GB-922443-A (GB)
Title: Substituted 2-thiazolidineacetic esters and a process of producing them
IPC: C07D277/06
Filed: 1961-09-29
Abstract: Compounds of the general formula:-  <FORM:0922443/IV(a)/1> in which R is a methoxyphenol, dimethoxyphenyl, methylenedioxyphenyl, or thienyl radical, and R1 is a methyl or ethyl radical are produced by mixing a compound of general formula:-  <FORM:0922443/IV(a)/2> where R and R1 are as above, with cysteine, when the desired product is obtained. The reaction is preferably carried out at 70 DEG  to 80 DEG C. in aqueous methanol or aqueous ethanol from which the product is precipitated.  Starting materials of formula II may be obtained by reacting a compound of formula R-CH2-COOR1 with ethyl formate in the presence of metallic sodium or sodium alkoxide in an anhydrous solvent.
Patent GB-1001636-A (GB)
Title: Device for twisting of wire ropes and flexible shafts
IPC: D07B3/04
Filed: 1961-09-30
Abstract: 1,001,636. Stranding machines. A. PILCZUK. Sept. 30, 1961, No. 35446/61. Heading D1T. A wire rope stranding device comprises at least one hollow rotor 3 supported at each end by hollow shafts 5, 6 extending into the rotor, the facing ends of the shafts within the rotor being spaced apart by a distance at least sufficient to allow a wire supply reel 33 to be mounted on a shaft, the rotor being cut away as at 43 to permit such mounting, and drive means for drawing a core 32 through the shafts 5, 6 and for winding the wires from the reels 33 onto said core 32. In the embodiment illustrated the resulting rope 14 is then passed through a second set of wire supply reels coaxially mounted within a second rotor 4, the wire from these reels being fed to the exit end 29 of a hollow shaft 7 where they are stranded onto the rope 14. The rotors 3, 4 are driven from a common motor by belts (not shown) passing over pulleys 21, 22. The shaft 8 of the rotor 4 passes through a gearbox 9 that interconnects some take up wheels 23, 24 and a receiving bobbin 25 in a predetermined relationship with the rate of rotation of the rotor 4. Brake drums 39 and 40 are included.
Patent GB-399345-A (GB)
Title: Improvements in or relating to water taps
IPC: E03C1/08
Filed: 1932-12-14
Abstract: 399,345. Water taps. LORQUET, M., 307, Rue de Merode, and ERNALSTEEN, R., 104, Rue de l'Eglise Ste. Anne, Koekel. berg, both in Brussels. Dec. 14, 1932, No. 35457. Convention date, Dec. 22, 1931. [Class 135.] In a screw-actuated lift valve of the kind operated by the discharge nozzle and wherein the valve is urged to closing position by the water pressure and closed down positively by the nozzle, the valve head is made of ovoid form supported on a solid stem and is adapted to close down upon an annular seat n of vulcanized rubber. The head may be fitted with a disc of rubber v with longitudinal peripheral grooves to provide a water way, the disc serving to damp out any noisy vibrations of the valve in the tap body. The valve stem i is secured to a crossbar arrangement f<1> in the nozzle d by a screw pin t<1> giving slight longitudinal play. In a modification the valve spindle end is grooved to receive a split washer which is secured in a socket in the crossbar arrangement by a screw plug.