baber/WOPTO huggingface dataset:
Patent GB-685053-A (GB)
Title: Improvements in or relating to electrically operated indicators
IPC: B64D45/00
Filed: 1949-06-29
Abstract: 685,053. Electric indicators. NORMALAIR, Ltd., and SWAFFIELD, P. J. June 27, 1950 [June 29, 1949], No. 17231/49. Class 40 (i). In an electric indicator for e.g. pressurized aircraft, cabin control systems, two bridge members a, b, Fig. 1, of non-magnetic material are supported one above the other and separated by pairs of pillars c', d' of magnetic material. The lower supporting pillars c, d are encircled by a figure of 8 coil e formed by twisting a circular coil about a diameter. A permanent magnet g is pivoted between the bridge members on a spindle f and is biased by a hairspring h so that a black pointer painted on a disc j carried by the spindle is normally concealed behind an opaque band o on a window m, Fig. 2. A steel casing n excludes external magnetic fields. According to the direction of the coil current the pointer is electromagnetically deflected through 90 degrees into one of two diametric positions to appear in the upper or lower sector of the window.
Patent GB-483893-A (GB)
Title: Improvements in or relating to percussive tools
IPC: B25D11/06
Filed: 1937-06-21
Abstract: 483,893. Percussive drills. PINAZZA, G. June 21, 1937, No. 17268. Con vention date, June 20, 1936. [Class 124] Eccentric masses M, M<1> are revolved by a gear train from a flexible shaft and produce vertical oscillations of the casing M. Upward blows of this are cushioned by the cylinder 4 containing air under pressure supplied to it through an external pipe and non-returr valve. Spring 7, 8 positior the tool 5, which is turned by the twist mechanism 11.
Patent GB-501247-A (GB)
Title: Improvements in punching or nibbling machines
IPC: B21D28/34
Filed: 1938-06-10
Abstract: 501,247. Punching. AKTIEBOLAGET LINHAM. June 10, 1938, No. 17273. Convention date, June 10, 1937. [Class 83 (iv)] In a ribbling - machine a punch 1 reciprocated by a connecting rod 4 is secured to a pin 8 mounted in a journal 3 in a slide 2 to form a universal joint. The punch is guided by a a sleeve 10. adjustably secured in a yoke 11 fixed to the frame.
Patent GB-878027-A (GB)
Title: Improvements in and relating to icebreakers
IPC: B63B35/10
Filed: 1959-05-21
Abstract: 878,027. Icebreakers. HITZLER, F. May 21, 1959 [March 23, 1958], No. 17278/59. Class 113. An icebreaker has devices for producing periodic pitching movements concentrated in, at or forward of the bows. Said devices comprise out-of-balance weights a, b rotating in opposite directions at the same speed to create forces which neutralise in a horizontal direction but reinforce one another in a vertical direction. In Fig. 3 the bow portion carrying the devices is separate from the rest of the ship and connected thereto by means of resilient bodies g. In Fig. 4 the out-of-balance weight apparatus is arranged in a floating body connected to the bow of the icebreaker at i by arms h supported on resilient bodies k.
Patent GB-1420391-A (GB)
Title: Electromagnetic rail for driving trains by thyristor controlled  linear motors
IPC: H02K41/02
Filed: 1973-04-11
Abstract: 1420391 Linear motors NIPPON KOKUYU TETSUDO FURUKAWA DENKI KOGYO KK and SUMITOMO DENKI KOGYO KK 11 April 1973 [21 April 1972 (4) 25 Aug 1972 (2) 2 Sept 1972] 17284/73 Heading H2A In a transport system comprising a train driven by a thyristor controlled linear motor and including an electromagnetic rail mounted on a stationary support, the rail comprises an armature winding covered with electrical insulation and including a plurality of composite coil arrays each comprising two coil arrays, each coil array comprising a plurality of series connected rectangular coils, e.g. 1-1, 1-2, 1-3 or 5-1, 5-2, 5-3, of equal length and spaced apart by a distance equal to the length of each coil, the coils of each array being fitted into the spaces between the coil of the other array and being wound in the opposite direction to the coil of the other array. The composite coil arrays are arranged parallel to one another in the longitudinal direction of the rail and are mutually staggered, Fig. 8 (not shown). The rail includes short circuited induction coils, 24, Fig. 13, to provide braking and suspension forces for the train in the event of a failure in the power supply to the armature winding. The armature winding and induction coils may be moulded in resin to form a unitary structure. The rail also includes a channel 23 carrying fluid to cool the armature winding. The opposite sides of the rail support may carry supply conductors 29, Fig. 16 (not shown) slidably engaged by contacts connected to field windings mounted on the train.
Patent GB-582835-A (GB)
Title: Multi-break electric gas blast circuit-breakers
IPC: H01H33/14
Filed: 1944-09-11
Abstract: 582,835. Gas-blast switches. AKT.-GES., BROWN, BOVERI, & CIE. Sept. 11, 1944, No. 17319. Convention date, Sept. 11, 1943. [Class 38 (v)] In a multi-break gas-blast circuit-breaker with control of voltage distribution over the points of interruption by means of parallel impedances, the impedances are connected in parallel by separate switches or spark gaps. The interrupting points a<1> &c. are carried in insulators d' &c. having metallic end pieces k<1> &c. The control resistances g' &c. with their switching means are located in insulators i<1> &c. between the end pieces k' &c. When pressure gas is supplied from the cylinder f, the movable spring- closed contacts a<1> &c. are opened, the arcs being blown out through baffles n', n<2>. Some of the gas passes to insulators i' &c. and opens contacts c' &c. the gases escaping through baffle n<4>. In a modification, Fig. 4 (not shown), the exhaust gases from the resistance switches escape through the baffles n', n<2>. In Fig. 5, the switches are replaced by spark gaps p<1>-p<3> with pin electrodes, or a pin electrode and hollow electrode as shown, or alternatively the electrodes may be at each side of an insulating nozzle. In a further modification, Fig. 6 (hot shown), the exhaust gases from switches a<1> &c. are passed over the spark gaps p<1> &c. In Fig. 7 (not shown), the resistances are fixed one above the other on an insulating tube, the spark gaps being inside the tube, and gas passes down the inside of the tube and escapes round the outside, thereby cooling the resistances. If the series disconnecting switch b of Fig. 3 is omitted, the pressure in the insulator must be maintained after the arcs are extinguished. The resistances may be dimensioned to control over-voltages, and those of several points of interruption may be combined to form one disconnectable group, Fig. 2 (not shown).
Patent GB-1568350-A (GB)
Title: Azolyl-alkane-carboxylic acid derivatives and their use as fungicides
IPC: A01N43/653
Filed: 1978-05-03
Abstract: The new azolylalkanecarboxylic acid esters and amides of the formula I <IMAGE>  in which     Az represents an optionally substituted azolyl radical,   R<1> represents optionally substituted phenyl or alkyl,   R<2> represents hydrogen, optionally substituted phenyl or alkyl,   R<3> represents the groups -OR<4> or -NR<5>R<6>, where   R<4> represents alkyl, cycloalkyl or optionally substituted phenyl, and R<5> and R<6> are identical or different and represent hydrogen or alkyl or together represent an alkylene bridge which may optionally contain oxygen as a further heteroatom,   and salts thereof have strong fungicidal properties and are suitable for use as crop protection agents for the control of fungi. These active substances are obtained by reacting  alpha -haloalkanecarboxylic acid esters and amides with azoles in the presence of a diluent and an acid-binding agent.
Patent GB-560481-A (GB)
Title: A machine for drilling grain and seeds
IPC: A01C15/10
Filed: 1943-12-08
Abstract: 560,481. Distributers for seeds. STEWART, G. C. Dec. 8,1943, No. 17483/42, [Class 6 (i)] A machine for drilling grain and other seeds comprises an elongated hopper 4, the base of which is formed with a plurality of rearwardly sloping recesses .13, a rotatable driving shaft 6 having toothed impelling wheels 17, one for each recess, a corresponding number of orifices in the rear wall of the hopper and means for simultaneously varying the effective sizes of the openings, means for varying the position of the wheels 17 with respect to the outlet orifices; and variable gearing for transmitting power to the shaft from the land-wheels 3 of the. machine. In the construction shown, the seed is fed through openings in the rear wall 16 , of the hopper 4 by toothed wheels 17 on the shaft 6, the latter being driven through changespeed gearing from the axle 2 of the machine. Each toothed wheel rotates in a separate recess in the base 12 of the hopper and each is fitted with bristles 19 to clean the orifices from adhering seeds. The shaft can be moved towards or away from the orifices by screws 29 connected to the bearings of the shaft. Adjacent each orifice is a disc 20 formed with apertures 22 of different sizes. The discs are interconnected by a bar 23 which is operated by a pivoted hand lever 25 when it is desired to move the discs to bring smaller or larger apertures into alignment with the seed orifices. The seed is discharged into fixed depending tubes adjacent the orifices, these tubes communicating by means of flexible tubes with coulters for depositing the seed in the ground.
Patent GB-319297-A (GB)
Title: Electric radiator
IPC: F24C7/06
Filed: 1928-06-18
Abstract: 319,297. Pitt, F. D. June 18, 1928. Electric radiators.-In a radiator employing a cup-shaped heating element 28 arranged in a bowl-shaped reflector 11, the element and the reflector are the end portions of co-axial ellipsoids. The surface of the heating element may pass through the focus.of the reflector. A standard 21 mounted on the reflector has arms 23 provided with tongues 24 engaging recesses 29 in the element, and the arms are maintained in position by a member 25 engaging slots in the arms. A spiral thread is formed on the core of the element to contain a sinuous heating wire 36.
Patent GB-752713-A (GB)
Title: Production of titanium concentrates
IPC: C22B34/12
Filed: 1954-06-15
Abstract: A titaniferous iron ore containing compounds of aluminium and silicon is treated to form a titanium concentrate by mixing the ore with an oxidic compound of sodium and a carbonaceous reducing material, heating the mixture to a temperature between 1200-1500 DEG C. till the ferrous oxide content of the slag is reduced to 1-10 per cent, the amount of oxidic compound of sodium being sufficient to produce a slag containing 17-25 per cent of Na2O and in which the ratio of Na2O to Al2O3 + SiO2 \sS TiO2 is 0,3-0,4 when the TiO2 content of the original ore is 5-22 per cent and 0,24-0,4 per cent when the TiO2 content of the original ore is above 22 and up to 50 per cent, leaching the slag with dilute sulphuric acid to remove Na, Al and Si acid-soluble compounds and to produce a leached slag in which the ratio Na2O to TiO2 is 0,16-0,24 and separating leach liquor from the leached Ti-containing slag.  The sulphuric acid used is preferably of strength between 5 and 15 per cent and the slag is leached at a temperature from 25 DEG  C. to 80 DEG  C.
Patent GB-595946-A (GB)
Title: Improvements in refrigeration
IPC: F25B43/04
Filed: 1945-07-10
Abstract: 595,946. Refrigerating. TRIGGS, W. W. (Servel, Inc.). July 10, 1945, No. 17622. [Class 29] Absorption systems. - In continuous - cycle systems having a high pressure side including the generator 17 and a low pressure side including the evaporator 5, a variable quantity of refrigerant liquid is stored out of solution in a vessel 50, the quantity stored depending on the pressure differential between the high and low pressure sides of the system, so that the concentration of the absorbent solution varies according to operating conditions. The system operates under a vacuum and uses water as the refrigerant and a solution of a salt such as lithium chloride or lithium bromide as the absorbent. The boiler 17 is heated by steam supplied at 25 and comprises vertical tubes 23 from which the vaporised refrigerant passes through a baffled chamber 27 to the condenser 6 and thence through a U-tube 7 to the finned evaporator 5 traversed by air to be cooled. Refrigerant vapour passes to an absorber 16 to which absorption liquid weak in refrigerant is fed from the chamber 27 through pipe 30, liquid heat-exchanger 19, and pipe 31, the strong liquor from the absorber passing by pipe 18, liquid heat-exchanger 19, vessel 21 and pipe 22 to the lower end of the boiler. Refrigerant not vaporised in the evaporator 5 drains into a trough 12 connected by a pipe 51 to the refrigerant storage chamber 50 which is connected by pipes 52, 53 with the bottom of the boiler 17 and the evaporator 5 respectively. The pressure difference between the boiler and condenser and the evaporator and absorber is maintained by liquid columns in the pipes 7, 18, 20 and 52 and the storage chamber is arranged at such a height that the liquid level therein varies between the positions shown in dotted lines due to variations in the operating conditions, e.g., cooling water temperature or presence of non- condensible gases in the system. Cooling water supplied at 33 passes through pipes 32 in the absorber and thence by a pipe 34 to the condenser 6, leaving at 35. Any increase of temperature of this cooling water causes an increase in the pressure difference, and the storage vessel 50 will fill, withdrawing refrigerant from circulation and increasing the concentration of absorption solution to produce a sufficiently low temperature in the evaporator. The presence of non-condensible gases increases the pressure in the absorber, and refrigerant is delivered from the storage vessel to the boiler to dilute the absorption solution and prevent crystallization and precipitation oi salt. Such non-condensible gases are purged by a pipe 39, auxiliary absorber 40, pipes 41, 37, vessel 38, pipe 47 and exhaust pump 48 with cock 49.
Patent GB-618455-A (GB)
Title: Improvements relating to the synthesis of hydrocarbons and other compounds from mixtures of carbon monoxide and hydrogen
IPC: C07C45/50
Filed: 1946-06-12
Abstract: Hydrocarbons and small amounts of oxygen-containing compounds are synthesised from a feed gas containing carbon monoxide, hydrogen, and olefins at a pressure of 1-50 atm. in the presence of cobalt at 170-250 DEG  C. or iron at 200-310 DEG  C., if desired on supports or with promoters.  The olefins are normally gaseous or of gasoline boiling range, and normally constitute not more than 30 per cent of the combined feed.  They may be admixed with inert gases or paraffins.  Synthesis may be effected in two or more stages, olefins being added in the first and an effluent gas produced of a higher CO : H2 molar ratio yielding olefinic products in the later stages. Thus, in the first stage CO : H2 is from 1 : 1.2 to 1 : 2.  After 50 per cent CO conversion and separation of C4 and above, the effluent passes to a second stage with sufficient initial gas to give a CO : H2 ratio of 1.25 : 1.  The ethylene-propylene content of the feed should be at least 2, preferably at least 5 moles. per cent of the CO and H2.  A C2-C3 fraction of cracked petroleum is a suitable olefinic feed.  Mixtures of CO and H2 may be produced by partial combustion of hydrocarbons, preferably methane.  Effluent gas from the synthesis may be reacted with oxygen to yield further CO and H2.  In examples, the added olefin is diisobutylene, ethylene, propylene or normal butenes, and the catalyst cobalt, thoria, magnesia, kieselguhr. Temperatures vary from 190 DEG  to 250 DEG  C., and pressure is atmospheric.  The products comprise gasolene fractions of high olefin content and branched chain hydrocarbons.
Patent GB-585668-A (GB)
Title: Improvements in or relating to the production of moistureproof cellulosic sheet or film
IPC: C08J7/052
Filed: 1943-10-26
Abstract: 585,668. Coated films. BRITISH CELLOPHANE, Ltd. Oct. 26, 1943, No. 17644. Convention date, Nov. 10, 1942. [Class 140] A thermoplastic moisture-proof coating comprising a polyvinyl butyral film-forming agent, a wax moisture proofing agent and a resin blending agent is coated over a thin moisture-proofing coating comprising a film-forming agent and a wax or waxy moisture-proofing agent on a non- fibrous cellulosic base sheet or film. The base sheet may be regenerated cellulose or an organic solvent soluble cellulose derivative such as cellulose nitrate or acetate or ethyl cellulose. The inner moisture-proofing coating may be applied to one or both sides of the base and may be that described in Specification 283,109, [Class 140], or may contain, in addition substances such as dicyclohexyl phthalate or hydrogenated castor oil phthalate. This coating may be anchored to the base as in Specification 545,523, or by use of an intermediate coating containing a butadiene polymer or an ethenone material of the hexadecyl ketene dimer type. The outer coating comprises three solid constituents, (1) polyvinyl butyral, which may be produced by reacting polyvinyl alcohol with butyraldehyde so that 70-90 per cent. of the hydroxyl groups are reacted, (2) a wax moisture-proofing agent, which is preferably. paraffin wax of melting point above 55C., but may be a waxy substance such as Japan wax, spermaceti, ceresin, beeswax, petroleum jelly or a monohydric alcohol ester of a higher fatty acid, (3) a resin blending agent to increase the mutual compatibility of (1) and (2), which may be a natural resin such as rosin or dammar, a treated natural resin such as hydrogenated rosin, polymerized rosin or ester gum, or an artificial resin such as a cumarone-indene resin, an alkyd resin, or a resinous ester of a terpinene-maleic-anhydride polybasic acid resin complex, comprising essentially 3-isopropyl-6-methyl-3:6 endoethylene-delta-4-tetrahydrophthalic anhydride. A plasticizer for polyvinyl butyral, such as dibutyl phthalate or dibutyl sebacate, may be included, and the solvent may be a mixture of ethanol, ethyl acetate and toluene. The coating after removal of solvent, becomes plastic at 80C. and can be heat-sealed at 130C. The final coated sheet may be formed into containers for food products. U.S.A. Specification 2,017,866 also is referred to.
Patent GB-807305-A (GB)
Title: Improvements in or relating to the manufacture of soles, heels and soling material for footwear
Inventor: WEBB CHARLES ERNEST
IPC: A43B13/12
Filed: 1955-06-18
Abstract: 807,305. Soles and heels. CLARK Ltd., C. & J. Sept. 14, 1956 [June 18, 1955], No. 17683/55. Class 17(2) [Also in Group VIII] A laminate comprises an assembly of alternate layers of microcellular rubber and layers of a substantially non-extensible material partially enclosed by a covering of rubber or rubber-resin composition, the whole assembly being vulcanized to form one body. A non-extensible material is a material which is substantially less extensible than the associated microcellular rubber and may be, for example, a vulcanized natural or synthetic rubber, a perforated metallic sheet, light open-weave calico cloth, or a woven material such as viscose rayon fabric. The laminate may be used to make soles or heels or sole-and-heel units for shoes. A shoe sole or heel or sole-and-heel unit may be made by forming an assembly comprising unvulcanized microcellular rubber blanks, layers of substantially non-extensible material interposed between said blanks and an outer layer (or layers) of a sheet of rubber or rubber-resin composition, placing the said assembly in a mould cavity, closing the entry side of the mould cavity by a closure member and applying heat and pressure to the assembly in the mould. A shoe may be made by a modification of the above method in which the entry side of the mould cavity is closed by the underside of a lasted shoe upper. The covering sheet of rubber or rubber-resin composition may cover only the underside e of the sole or may be extended to cover the edges f and part of the upper side g (as shown). The lowermost layer of fabric or other reinforcement may be turned upwards and inwards as at c. A recess as at d may be formed in the heel portion for the insertion of a wooden or other block. The reinforcing material may be treated with rubber solution to assist adhesion to the microcellular material, as also may the Under-side of the last-mounted shoe upper when used to close the mould.
Patent GB-257382-A (GB)
Title: Improvements in grinding or abrading machines
IPC: B24B47/06
Filed: 1925-07-11
Abstract: 257,382. Marks, E. C. R., (Giddings & Lewis Machine Tool Co.). July 11, 1925. Round holes, enlarging and trueing; gauges; spindles.-A grinding-machine comprises a work-carrying headstock on a carriage movable transversely of the machine base and a grinding wheel carriage movable along the base, means controlled by a gauge being provided for separating the grinding-wheel from the work and then moving the wheel beyond the end of the work upon completion of the grinding. The machine consits of a base carrying a work headstock carriage and a reciprocating grinding carriage, the feed of the work and the reciprocation of the carriage being controlled by gauges, as described in Specification 257,381. The headstock carriage is fed along the ways 25 to move the work A against the grinding- wheel 21, as shown in Fig. 3 of Specification 257,381, by a screw 108, Fig. 10, engaging a nut 109 on the section 24 of the carriage. The screw carries a hand-wheel 111 outside a feedbox 110 and within the box a sleeve 113 is mounted upon the screw, the sleeve carrying a ratchet wheel 112 which operates the screw through gearing 114. The wheel 112 is rotated intermittently by either or both of two pawls, a coarse feed-pawl 115 and a fine feed-pawl 116, Fig. 9, the strokes of which are adjusted by eccentrics 122. 123 engaging levers 117, 118 carrying the pawls. The levers carry cams 120 and are oscillated by a lever 121 engaging the cams and moved by a piston 124 reciprocable in a cylinder to which are connected pipes 126, 127 branching from the valve 77. Within the feed box are two electromagnets 128, 129, the armatures 130, 131 of which, when attracted, lift the pawls from the ratchet wheel; the magnet 128 is excited upon closure of the switch 52, and the magnet 129 upon closure of the switch 53. The pawls after excitation of the magnets are locked by latches 137, which may be released by a lever 141 and links. When the work is to size, it is moved laterally to separate the ground surface and the grinding-wheel. This is effected by movement of the feed screw axially by a lever 177 which engages between collars 170 fixed axially on the screw, the lower end of the lever engaging a piston in a cylinder to which pressure fluid is admitted by a valve 197 when this is moved by the closing of the circuit of a magnet 201 by closure of the switch 53. A water guard 180 and' a shield 181' are provided to protect parts therebeneath. Specifications 227,160 and 254,417 are referred to.