baber/WOPTO huggingface dataset:
Patent GB-774125-A (GB)
Title: Improvement in process for the liquid phase dehydrohalogenation of organic halogen-containing compounds
IPC: C07C17/25
Filed: 1954-04-29
Abstract: Organic compounds of the general formula: <FORM:0774125/IV(b)/1> (wherein R represents hydrogen, chlorine, bromine, fluorine or an aliphatic or aromatic radical, but not more than one R may represent an aromatic radical, and X represents chlorine, bromine or fluorine) are dehydrohalogenated by maintaining the bulk of such organic compound in the molten state within a receptacle therefor and contacting a portion of the molten organic compound with a hot surface situated below the surface of the molten organic compound and maintained at a temperature at which dehydrohalogenation of the organic compound will occur, e.g. 600-1200 DEG  C. (preferably 800-1100 DEG  C.).  The hot surface may be heated by electrical means, for which purpose it is advantageously formed of an electrically conductive material which is substantially rigid at dehydrohalogenation temperatures and substantially resistant to attack by the organic liquid or the dehydrohalogenation products (e.g. a metal or alloy such as a chromel alloy or platinum). Examples describe the preparation of: (1), (2), (3) and (7) vinyl chloride from ethylene dichloride; (4) tetrachlorethylene from pentachlorethane; (5) isobutene from tert.-butyl chloride; (6) vinyl bromide from ethylene dibromide; (8) propylene from isopropyl chloride; (9) butadiene from 1 : 4-dichlorobutane; (10) styrene from 2-phenylethyl chloride; (11) trichlorethylene from acetylene tetrachloride; (12) 1 : 1-difluoro-2-chloroethylene from 1 : 2-dichloro-1 : 1-difluoroethane; (13) the same product from 1 : 1-difluoro-2 : 2-dichloroethane; (14) 1 : 1-difluoro-2 : 2-dichloroethylene from 1 : 1 - difluoro - 1 : 2 : 2 - trichloroethane.  Additional starting materials are listed, and other suitable metals and designs thereof for heating, and methods of heating.
Patent GB-455559-A (GB)
Title: Improvements in or relating to electric cut outs connectors and the like
IPC: H01H85/20
Filed: 1935-04-25
Abstract: 455,559. Switch and fuse contacts. DONOVAN, E. T. G., 355, Birmingham Road, Wylde Green, Birmingham. April 25, 1935, No. 12416. [Class 38 (v)] A plug-and-socket contact of the rigid clip and blade type provided with a screw member for expanding the blades in the socket in the manner described in Specifications 335,158, [Class 38 (v)], and 455,560 is provided with a resilient arm or blade to hold the fuse contact, cable end, &c. temporarily in position, pending the completion of the coupling operation by the clamping screw. As shown in Fig. 2, the plug blade b carries a spring-influenced pivoted plate a which serves as a clip for holding the blade like extremity c<1> of a fuse-holder, cable end &c. prior to insertion of the plug member and plate a may be replaced by an inherently resilient plate or a similar spring clip g may, alternatively be mounted in the socket e as shown in Fig. 4. A blade-like terminal connection i may be secured in the socket by a screw i<1>.
Patent GB-881027-A (GB)
Title: Improvements in or relating to a strip rolling mill
IPC: B24B7/12
Filed: 1959-04-13
Abstract: 881,027. Rolling; straightening. PROPERZI, I. April 13, 1959 [May 7, 1958], No. 12482/59. Addition to 703,125. Class 83 (4). [Also in Group XXIII] The rolling mill described in the parent Specification is provided with straightening, cleaning, polishing and cutting apparatus for the strip. Strip 2 issuing from the mill 1 is straightened, cleaned and polished by passing through sets of rollers P 1 , P 2 , P 3 , P 4  each comprising a driven felt disc 4 and two spring- biased rollers 5. The rollers 5 are adjustably mounted in a block pivoted to a slide 6 and are urged upwardly by a spring 11. The rollers 5 may be lowered for insertion of the strip by foot-pressure on a lever 10. A cutter 8 driven by a motor through a speed-varying gear 9 severs the strip to the length required, the action of the cutter being synchronized with the speed of the strip.
Patent GB-1132522-A (GB)
Title: Improvements in serving trolleys
IPC: A47B31/04
Filed: 1966-03-22
Abstract: 1,132,522. Serving trolleys. BREMSHEY & CO. 22 March, 1966 [13 April, 1965], No. 12592/66. Heading A4H. [Also in Divisions H1 and H5] A folding serving trolley has a shelf comprising an electric hot plate which can pivot into the vertical thereby breaking a pair of electric contacts to intercept the supply current. The trolley comprises a rectangular tubular frame 2 supporting four half shelves 3, 4, 5, 6 hinged about central axes x - x, y - y and loops 9, 10 carrying wheels 1. Pairs of upper and lower half shelves 3, 5, and 4, 6 are connected by tension rods 7, 8 and either pair can pivot upwardly independently of the other. On the underside of shelves 3, 4 are mounted plugs 13 each connected to a heating element 11, 12 contained in a shelf. The plugs engage in sockets 15 mounted on the frame when the shelves are horizontal and disengage when the shelves are pivoted upwards. In another embodiment without loops 9, 10 the wheels are mounted on extended tension rods and all the shelves fold together.
Patent GB-1492653-A (GB)
Title: Hydrostatic extrusion presses
IPC: B21C23/00
Filed: 1975-03-26
Abstract: 1492653 Extrusion ASEA AB 26 March 1975 12601/75 Heading B3P A hydrostatic extrusion press has a billet holder 20 which engages with the rear end of the billet 22 to prevent it skewing in the hydrostatic chamber 1b and which is provided with at least one forward flow path 29, 30 with a pressure difference valve 32 and at least one return flow path 28, 27 with a non-return valve 31. The front face of the billet holder has an annular guide part 35 with bars 36 which engage the billet. A chamber 41 is defined by an annular bar 40 which seals the chamber from hydrostatic fluid to keep it at a lower pressure to hold the billet holder against the rear of the billet. In an alternative embodiment an annular sealing member (52), Fig. 5 (not shown), is provided to define the low pressure chamber (41). The billet holder may have a recess to receive a rearwardly extending pin 75, Fig. 6, or a projecting pin (81), Fig. 7, which engages the rear of the billet. The billet holder may be annular to allow a mandrel (96), Fig. 8 (not shown), to extend therethrough. The pressure difference valve may be formed within the non-return valve, Fig. 10.
Patent GB-1520561-A (GB)
Title: Flexible integrated method for the production of ammonila and urea
IPC: C07C239/00
Filed: 1976-03-29
Abstract: 1520561 Preparation of ammonia and urea SNAMPROGETTI SpA 29 March 1976 [28 March 1975] 12622/76 Heading C1A [Also in Division C2] Ammonia and urea are produced in an integrated process which comprises separating a gaseous stream comprising CO 2 , H 2  and N 2  into a first and second portion, at least partially removing CO 2  from the first portion and recombining the two streams which recombined stream is then fed into a reactor containing an aqueous ammonia solution, the ammonium carbamate solution formed then being treated in a urea synthesizer to form urea, the gaseous stream from the reactor being fed to an ammonia synthesizer where the remaining H 2  and N 2  react to form ammonia which is subsequently absorbed in water; a portion of the resulting solution being used to absorb the CO 2  from the fed gas and another portion being subjected to distillation so as to produce liquid ammonia.
Patent GB-437285-A (GB)
Title: The manufacture of new compounds for the treatment of textiles
Filed: 1934-04-26
Abstract: Products stated to have emulsifying properties and to be useful as softening and cleansing agents in the textile industry are prepared by reacting a lower alkyl ester of an inorganic acid with a mercaptobenzthiazole which has an alkyl group containing at least eight carbon atoms in the 2-position and may carry substituents such as methyl, methoxy or ethoxy in the benzene nucleus.  The lower alkyl ester may contain up to four carbon atoms.  In examples: (1) 2-octadecylmercaptobenzthiazole, obtained by reacting octadecylbromide in butyl alcohol with the sodium mercaptobenzthiazole, is treated with dimethyl sulphate; the product may be used for softening cotton limbric; (2) 2-dodecylmercaptobenzthiazole, obtained by the interaction of dodecyl bromide and sodium mercaptobenzthiazole is treated with dimethylsulphate.  The 2-alkylmercaptobenzthiazoles may also be prepared from the 2-mercaptobenzthiazoles by treating them with the sulphuric esters of higher alcohols.  The following 2 - alkylmercaptobenzthiazoles are mentioned: 2-octadecyl, 2-dodecyl and 2-octadecenyl mercaptobenzthiazoles containing methyl or methoxy in the 6-position, or methyl in the 4-position.ALSO:Products stated to have emulsifying properties are obtained by reacting lower (up to C4) alkyl esters of inorganic acids with a mercaptobenzthiazole which has an alkyl group containing at least eight carbon atoms in the 2-position and may carry substitutent such as methyl, methoxy or ethoxy in the benzene nucleus.  In examples 2-octadecylmercaptoand 2 - dodecylmercapto - benzthiazoles are treated with dimethylsulphate. The following 2-alkylmercapto benzthiazoles are mentioned: 2-octadecyl-, 2-dodecyl- and 2-octadecenyl-benzthiazoles containing methyl or methoxy in the 6-position or methyl in the 4-position.
Patent GB-911650-A (GB)
Title: Improvements relating to the treatment of textile materials
Inventor: GOY RONALD STANSFIELD
IPC: D06B19/00
Filed: 1960-04-08
Abstract: A device for removing from a travelling fabric adherent particles derived from a fluidized solid treating agent or for drying a fabric comprises a pair of jaws 10 adapted to bear lightly on a fabric <FORM:0911650/IV (b)/1> passing therebetween; a longitudinal cavity 17 provided in each of the jaws; and air passages 19, 20 opening substantially tangentially in the cavities 17 and adopted to create a vortex of air in each cavity coaxially therewith in a direction such that at the cavity opening 18 air moves in a direction opposite to the direction of travel of the fabric, the surfaces 22 below the cavities 17 diverging, as shown.  Each jaw 10 comprises a back portion 13 pivoted at 11 and having a chamber 14 supplied with compressed air.  The passages 19, 20 extend from the chamber 14 through a front portion 15 to the cavity 17 at an angle of about 45 degrees to the axis thereof.  The device is positioned on top of a fluidization type heating chamber with vents 23 being provided for the escape of air.  A baffle 24 prevents loss of particles of the fluidized material.  The inverted V-shape of the lower part of the jaws allows the fabric to oscillate violently to facilitate the removal of particles thereon.  Also the air blast cools the fabric and any electrostatic charges thereon may be discharged by contact with the jaws.  The device may be combined with a machine, as described in Specification 885,513, for stretching nylon fabric. Alternatively, the device may be used for the relaxation and heat-setting of, and the fixation of dyes on, fabrics of nylon, polyethylene terephthalate or an acrylonitrile polymer and to the drying of fabrics.
Patent GB-252206-A (GB)
Title: Apparatus for analysing substances by means of rontgen or cathode rays
IPC: G01N23/22
Filed: 1926-05-17
Abstract: 252,206. Dessauer, F., (Assignee of Metallbank und Metallurgische Ges., Akt.- Ges.). May 15, 1925, [Convention date]. Addition to 252,207. R÷ntgen-ray apparatus.-In apparatus according to the parent Specification for analyzing substances by means of R÷ntgen rays filters are interposed in the path of the rays entering the ionization chamber which are of such a nature and are so arranged as to cause essentially only characteristic radiation to emanate from the substance, the effect being to produce more denned kinks in the ionization record. The filters may be such as have a selective absorptive action or have an ionization capacity lower than that of the substance under examination. In the Specification as 'open to inspection under Sect. 91 (3) (a), the method of using the filters was not restricted to the apparatus of the parent Specification. This subject-matter does not appear in the Specification as accepted.
Patent GB-706685-A (GB)
Title: Improvements in or relating to closure means for containers
Inventor: PACKER FRANK HENRY
IPC: B65D45/30
Filed: 1950-05-19
Abstract: 706,685. Pouri n g spouts for containers. GENERAL STAMPERS, Ltd. May 18, 1951 [May 19, 1950], No. 12649/50. Addition to 667,381. Class 66 A resilient flanged gromet 6 secured-within the orifice 3 of a metal container is provided with an annular protecting plate A anchored by a ring D which is secured by a line of welding to the top of the container. A flexible lining sac (not shown) within the container is bonded to the inner flange 10 of the gromet, the space between the sac and container being evacuated; the protecting plate A consequently prevents accidental breaking of the airtight seal provided by the gromet. A retractable spout S makes a sliding fit within the gromet and a plug or lid P fits within the spout. The spout is sealed by a cap comprising a breakable membrane M. The plate A is furnished with one or more eyes G which together with eyes on the plug P allow the passage of a sealing wire W. Specifications 648,863 and 663,867 are referred to.
Patent GB-528105-A (GB)
Title: Improvements in or relating to electrical oscillation generators
IPC: H03B5/18
Filed: 1939-04-27
Abstract: 528,105. Valve generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. April 27, 1939, No. 12665. Convention date, April 28, 1938. [Class 40 (v)] The grids of two oscillator valves Tl, T2 operating in push-pull are connected to symmetrically-spaced points a, b on a resonant line Z of length equal to an odd number of halfwave lengths and with its centre grounded, and the anodes, Fig. 1, or cathodes, Fig. 3, are connected to a further pair of symmetrical points c, d, the two connections for each valve being on opposite sides of the centre. Output may be taken from loops 1, 2 coupled to the line in opposite senses. A concentric conductor may be used as the resonant line, the connections a ... d passing through holes in the grounded outer conductor to the inner conductor. In another arrangement, Fig. 5 (not shown), output is taken from a resonant circuit, which may be tuned to the fundamental frequency or a harmonic, connected between main anodes of the valves, these main anodes being coupled electronically to auxiliary electrodes acting as oscillator anodes.
Patent GB-141216-A (GB)
Title: Improvements in the manufacture of tires for the wheels of roadvehicles
IPC: B60C11/18
Filed: 1919-05-20
Abstract: 141,216. Beaumont, W. W. May 20, 1919. Tread surfaces.-Pneumatic tyre covers or solid tyres are formed with the side portions C of the tread part of softer rubber than that used for the main wearing portion, so as to preserve sharp edges for preventing skidding. Specification 28517/07 is referred to.
Patent GB-552169-A (GB)
Title: Improvements in electric terminal blocks or lead clamps
IPC: H01R4/46
Filed: 1941-10-03
Abstract: 552,169. Mechanical couplings for wire sheathing or covering. GROCOTT, T., and GROCOTT, W. Oct. 3, 1941, No. 12781. [Class 38 (i)] A terminal block or clamp for the leads supplying an electric fire &c. comprises a pair of insulating members A, B one member A having a mounting flange a with a hole a<SP>1</SP>, and a channel a<SP>2</SP> in which are transverse ribs a<SP>3</SP>, and the other member B having a pair of ledges b<SP>1</SP> projecting in such a position as to enter the channel a<SP>2</SP> and co-operate with the ribs a<SP>3</SP> to grip a lead laid in the channel. The channel may terminate in divergent grooves a<SP>4</SP> to locate the separated wires of the lead.
Patent GB-828769-A (GB)
Title: Improvements in and relating to apparatus for forming nipples in pipes
IPC: B21C37/29
Filed: 1958-04-22
Abstract: 828,769. Making nipples in pipes; flanging. HUET, A. April 22, 1958 [June 4, 1957], No. 12817/58. Classes 83 (2) and 83 (4). Apparatus for forming nipples in the wall of a header pipe a by means of at least one punch p situated inside the pipe and an external cooperating die g includes a centring non-working die j adapted to cap a nipple already formed, the distance between the centring die and the working die being adjustable. To prevent rocking of the punch or punches an internal guide punch m is provided for engaging the previously formed nipple, said guide punch being mounted on a cylinder l or a bar f which supports the lifting jack e for the working punch p. The guide punch may be operated by the same or an independent source of fluid pressure and it is necessary that the guide punch engages the previously formed nipple before the working punch is operated. The header pipe is supported on arches band c and a frame d adjustably carries the dies g and and the bar f all of wbich are movable relatively to the header pipe.
Patent GB-1083274-A (GB)
Title: Apparatus for positioning sleepers on railway tracks
IPC: E01B29/10
Filed: 1966-03-23
Abstract: 1,083,274. Sleeper positioning apparatus. KERSHAW MANUFACTURING CO. Inc. March 23, 1966 [July 2, 1965], No. 12835/66. Heading E1G. Apparatus for positioning sleepers 75 below rails 11 comprises an elongated support member 14 having a sleeper inserting unit 38 mounted for longitudinal movement thereon. The unit 38 is carried on rollers engaging channel members 44 and has a winch with a cable 63 attached to a sleeper engaging unit 72. The sleeper to be inserted is engaged by an end face 77 and by forked arms 74 and is pushed under the rails until adjustable stop 70 meets the outer rail. Sleepers are moved to the unit 72 by a hoist having a grab 36. Sleepers are positioned longitudinally of the track by a unit 79, also movable along the member 14, having depending fork members 99 moved relatively to the unit 79 by a hydraulic jack. The forks 99 may be retracted hydraulically.
Patent GB-992770-A (GB)
Title: Improvements in agglutination of pigments and polymers
IPC: B29C48/03
Filed: 1963-04-01
Abstract: In a process for producing agglutinations of pigments and polymeric elastomers in which a mix of the pigment and the elastomer is subjected to mastication and drying, the pigment is preliminarily mixed with the elastomer in the form of a wet crumb of moisture content within the range 10 to 65% and a particle size within the range 2.5 to 325 mesh Tyler sieve to produce a mix of moisture content of at least 5% but not exceeding 50%.  The preliminary mixing may take place by tumbling the pigment and wet crumb together to form an adhering coating of the pigment on the wet crumb particles. The preliminary mixing is carried out until a mix containing at least 5% is prepared and this mix may be subjected before the masticating step to a mechanical compacting under temperature and pressure conditions which eliminate the moisture as vapour to a content of not less than 5%.  Specified elastomers are natural rubber, butadiene styrene, butyl rubbers, their halogenated derivatives, polymers of isoprene, and of butadiene, copolymers of ethylene-propylene and copolymers of butadiene-acrylonitrile. Carbon black is the preferred pigment, while silica is also specified.  The process may take place in apparatus which is described, being a dewatering extruder.  U.S.A. Specification 2,769,795 is referred to.
Patent GB-659517-A (GB)
Title: Improvements in eyeglass mountings
IPC: G02C3/00
Filed: 1949-05-16
Abstract: 659,517. Eyeglasses. HANSEN, A. H. May 16, 1949, No. 13008. [Class 97 (i)] An eyeglass frame comprises a bridge 13 rigidly interconnecting two lenses 10, nose pads 12 connected to the lenses for engaging the sides of the wearer's nose, and a pair of spring members 15 connected at one end to the lenses and curving upwardly in diverging directions so that the free ends thereof will engage the superorbital foramina of the wearer and exert downward pressure to hold the frame in position. As shown, the lenses are supported by partial rims 11 to which the bridge, nose pads and members 15 are attached. Alternatively the pads 12 may each be pivoted to a member 14, attached to the rim and also carrying the member 15 and prongs 18 permitting manual adjustment. In a modification the rims are omitted and the bridge is attached at each end to the lenses by straps. The nose pads and members 15 are attached to the bridge.
Patent GB-417435-A (GB)
Title: Improvements in or relating to cathode ray tube oscillographs
IPC: H04N5/74
Filed: 1934-04-30
Abstract: 417,435. Cathode ray tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.-(Assignees of Ogloblinsky, G. N. ; 22, Merrick Villa, Collingswood, New Jersey, U.S.A.) April 30, 1934, No. 13015. Convention date, April 29, 1933. [Class 39 (i).] In tubes for use in television the fluorescent screen 14 is formed on a flat wall 12 to which is applied a composite lens comprising a semispherical part 22 with its flat base parallel to the wall 12, the chamber 28 between being filled with oil which may circulate for cooling purposes. The refractive indices of the tube wall 10, 12, the oil and lens part 22 are substantially the same ; total reflection at the outer surface 30 of the wall is eliminated. A point source of light is formed by the tube at P ; the radius of curvature of the lens and the distances u1, u2 of the image P and virtual image P1 from the projecting lens 24 are such that P is at the aplanatic focus of the lens.
Patent GB-189401-A (GB)
Title: Milk-bucket
IPC: A01J9/10
Filed: 1922-05-09
Abstract: 189,401. Autzen, N. P. May 9, 1922. Buckets and pails.- A milking bucket comprises an inclined body a mounted on feet e. f, a seat g being disposed directly above the latter foot. In the mouth opening a 'funnel-shaped mouthpiece b is fitted, the perforated bottom b<1> of which is covered by a remov- - able sieve c of fine wire gauze.
Patent GB-240094-A (GB)
Title: Improvements in or relating to thrashing machines
IPC: A01F12/18
Filed: 1925-05-19
Abstract: 240,094. Lucas, E. B. May 19, 1925. Thrashing-machines.-In rice thrashing machines of the kind comprising a casing 2 having feed and delivery openings 1, 9, and a drum 3, formed of bars, rotating therein and fitted with radial teeth 5 and paddles 6, both arranged helically, the casing is provided with longitudinally-arranged teeth 8 passing between the teeth 5. One or more flat strips of metal may be arranged on either side of the teeth 8.
Patent GB-143246-A (GB)
Title: Improved means for returning oil from axle bearings
IPC: B61F15/22
Filed: 1920-05-12
Abstract: 143,246. Friedrich, W. June 22, 1918, [Convention date]. Oil, retaining in bearings for railway-vehicle or other axles or shafts. Oil is returned from the bearing to its oil-chamber 4 by a ring 12 movably mounted around the rear portion, and provided at its lower part with one or more triangular or trapezoidal scrapers 14, and a flange 13. The ring hangs from a rod 17, supported on the axle-box 3 by a spring 18. Oil thrown off at the top of the axle-shoulder 2 is caught by the ring 12 and returned to the chamber 4, assisted by a lip 15. Lugs 16 on the ring 12 bearing against the shoulder 2 prevent lateral play, and a tongue on the vessel 4 prevents outward motion. A cap 21 mounted on the axle-box catches and returns oil at the outer end of the axle.