baber/WOPTO huggingface dataset:
Patent GB-1037026-A (GB)
Title: Process for preparing 3,4-dihydroxyphenylalanines and intermediate compounds in the process
IPC: C07C255/53
Filed: 1963-10-03
Abstract: L - a  - Methyl - 3,4 - dihydroxyphenylalanine is prepared either by mixing DL-a -amino-a -vanillylpropionitrile with l-10-camphor sulphonic acid, separating the less soluble L,l-salt using a medium comprising 10-40 parts by volume of dioxane containing 0-10% H2O by vol., per part by weight of the DL-l-salt mixture, forming the L-isomer by basifying the solution of the L-l-salt under non-racemizing conditions, forming L - a  - amino - a  - vanillylpropionamide hydrohalide by acid hydrolysis below 20 DEG  C. and completing the hydrolysis at above 100 DEG  C. to give the amino acid, and finally recovering the D-l-salt from the first step, neutralizing it under racemizing conditions and recycling the racemate to the first step; or mixing DL - a  - amino - a  - vanillylpropionitrile with d - 10 - camphor - sulphonic acid, in the above medium, isolating the L-d-salt contaminated with some D-d-salt after removing the less soluble D-d-salt, alkanoylating the L-d-salt to give L-a -alkanoylamino-a -vanillylpropionitrile contaminated with some D-isomer, recrystallizing the L-isomer, then hydrolysing it as above to give the amino-acid and, finally, racemizing the D-d-salt and recycling the racemate.  L - a  - Alkyl - 3,4 - dihydroxyphenyl alanines are prepared by forming a DL - a  - alkanoylamino - a  - substituted benzylalkyl nitrile (where "substituted benzyl" is vanillyl, veratryl, or 3,4-di-hydroxybenzyl) from the free amine and an alkanoic anhydride; forming a supersaturated solutin of the DL-isomer in an inert organic solvent in which at least 1 g. of said racemate dissolves per litre of solvent, contacing the saturated solution with at least 5% by weight of one of its enantiomorphs in crystalline form and separating the said enantiomorph, after addition crystallization, from the mother liquor still supersaturated with the other enantiomorph, repeating the procedure on the said mother liquor with the other enantiomorph; recycling the mother liquor, converting the D-isomer to the alkyl substituted benzyl ketone by heating above 100 DEG  C. with a strong base, converting the ketone to racemic amino - a  - (substituted benzyl) alkyl nitrile by reaction with ammonia and a cyanide, and recycling the product to the first step; and hydrolysing the L-isomer by the method disclosed above.
Patent GB-360257-A (GB)
Title: Improvements in or relating to mouth cleansing apparati
IPC: A61C17/02
Filed: 1930-12-29
Abstract: 360,257. Atomizers. ANDVIG, H., 34, Ullevalsveien, Oslo, Norway. Dec. 29, 1930, No. 39022. [Class 69 (iii).] A mouth-cleaning apparatus of the kind comprising a vessel 1 containing a cleansing liquid and a compressed gas flask 7 for atomizing the liquid has the vessel 1 formed with a central gas channel 2 open at the bottom and communicating with its interior through a narrow channel 3. The gas flask 7, the outlet valve of which mav be controlled by a lever 9 is contained in a cylinder 6 screwed into a depending flange 5 in the liquid chamber and has its neck extending into the channel 2 where it presses against packing 8. The gas supply may also be regulated by a screw valve 11 which may also serve to actuate a member 12 for piercing the seal of the flask 7. Liquid is ejected through the tube 15 and past a non-return valve 20. Gas is admitted to the tube 15 through a hole 19 from a tube 17 into which it enters by an opening 18.
Patent GB-1535249-A (GB)
Title: Image display device
IPC: H04N3/14
Filed: 1976-09-21
Abstract: 1535249 Displays INDESIT INDUSTRIA ELETTRODOMESTICI ITALIANA SpA 21 Sept 1976 [23 Sept 1975] 39180/76 Headings G4H and G5C An image display device for a TV receiver comprises a matrix of illuminable elements, each column of the matrix being connected to, or fed with a signal representing, a respective output of a delay line of the charge displacement type, which delay line, in use, is fed with a video signal representative of the image to be reproduced, and a clock signal at a frequency such that the overall delay time of the delay line is substantially equal to the useful duration of a line scan. As disclosed, the illuminable elements are LEDs, and a clock-driven shift register selects the matrix rows in turn, each to receive the then-current contents of the delay line in parallel. Strobe gates may be provided between the shift register and matrix rows, or a parallel analogue store be provided between the delay line and matrix columns. The device may be produced as an integrated circuit.
Patent GB-1397850-A (GB)
Title: Sintered metal materials
IPC: B22F3/26
Filed: 1973-08-20
Abstract: 1397850 Sintered metals impregnated with sulphur or sulphides JURID WERKE GmbH 20 Aug 1973 [23 Aug 1972] 39199/73 Heading C7D [Also in Division F2]  Sintered bodies containing sulphur and/or metal sulphides are produced by impregnating the sintered body with an aqueous solution containing one or more alkali metal and/or ammonium sulphides and/or polyshulphides and heating the impregnated body e.g. at 200-600‹C for ¢-2 hours. The sintered material is bronze or an Fe based alloy and the impregnated bodies may be used for bearings or filters.
Patent GB-915930-A (GB)
Title: Improvements in or relating to agricultural implements
IPC: A01B69/02
Filed: 1961-11-06
Abstract: 915,930. Agricultural implements. INTERNATIONAL HARVESTER CO. Nov. 6, 1961 [Nov. 17, 1960], No. 39616/61. Class 6(1). The ground marker arms 9 of an agricultural implement are interconnected so that they are alternately swung into and out of an operative position when the tractor drawing the implement is turned, the arrangement being that both arms are in an inoperative position while the tractor is being turned and one of the arms moves into operative position when the turn is completed. As shown, the arms 9 are connected by a chain 13 to a lever 15 which is spring urged into two positions and is operated by a link 36 which is connected to a lever 37 on the tractor and is fastened to a bell-crank lever 31 the arm 31a of which is pivoted to a lever 39 having arms 38 which contact a pin 23 on the lever 15. The arrangement is such that when the tractor is turned the arm 38 holds the lever 15 so that both arms 9 are raised and when the tractor has completed the turn the appropriate arm 9 is lowered.
Patent GB-1177298-A (GB)
Title: Improvements in Devices for Supporting Mirrors on Articles of Furniture
Inventor: GRIFFIN REGINALD ALBERT
IPC: A47B67/00
Filed: 1967-08-30
Abstract: 1,177,298. Mirrors. HARRIS LEBUS Ltd. 10 July, 1968 [30 Aug., 1967], No. 39618/67. Heading A4V. [Also in Division E2] A device for supporting a mirror on an article of furniture such as a dressing table comprises a spigot part 1 and a socket part 2 for connection one to the mirror and the other to the article, the socket, in use, allowing the spigot to be displaced in a direction which is substantially perpendicular to the plane of the mirror between two limiting positions at each of which the mirror is held in a set position, the spigot and socket parts having shoulders 11, 21, 22 which are shaped so that, in use, one portion of the spigot shoulder 11 engages one portion 21 or 22 of the socket shoulder when the mirror is in one set position, and another portion of the spigot shoulder 11 engages another portion 22 or 21 of the socket shoulder when the mirror is in the other set position. As shown, the spigot and socket parts are moulded from a plastics material.
Patent GB-1396017-A (GB)
Title: Yarn treating apparatus
IPC: D02J1/22
Filed: 1972-08-29
Abstract: 1396017 Yarn treatment apparatus ATELIERS ROANNAIS DE CONSTRUCTIONS TEXTILES 29 Aug 1972 [23 Sept 1971] 40012/72 Heading B5B Two yarns, filaments &c. are treated simultaneously by passage around the same cylindrical member 1. The yarns are guided to opposite sides of the cylinder and pass around it in different senses and along paths separated on the surface of the cylinder. The guides are arms 11, 12 with eye holes 13, 14, 15 and 16 in the ends, through which the yarns &c. pass. The guide arms 11, 12 and the cylinder 1 are rotatable with respect to each other about the same axis between fixed positions. Either the arms or the cylinder may be fixed leaving the other to rotate. In the embodiment of Fig. 1, the cylinder 1 is fixed allowing the arms 9, 10 which are rigidly attached to guide arms 11, 12 to rotate about pivot pins 6, 7 relative to cylinder 1. The arms are fixed to the arms 9, 10 of U-shaped member 8 which can be moved from one position to another, as illustrated in Fig. 2 (not shown), under the influence and restraint of the device comprising rigid plate 19 and bar 18 on which is located compression spring 20 and washer 21; the bar 18 is attached rotatably to member 8 by means of peg 17.
Patent GB-1436331-A (GB)
Title: Submarine periscope simulators
IPC: G02B23/08
Filed: 1972-08-30
Abstract: 1436331 Optical apparatus FERRANTI Ltd 28 Aug 1973 [30 Aug 1972] 40165/72 Heading J A training simulator for a submarine periscope comprises a viewing station 10 containing focusing and range-finding apparatus 12, 30-36, a hollow tube 15. 18 extending from the station, the lower part 18 extending into a hollow support tube 19 and rotatable on bearings 20, and a television monitor 24 in the periscope tube providing a scene on which the focusing and range-finding apparatus may be used. 'The periscope tube also has bearings at 16 in a ceiling bulkhead 14 and at 21 to prevent lateral movement, carries a friction member 22 co-operating with a support friction member 23 to simulate rotational inertia, and has a slip ring 26 for connections to a power cable 27 for the monitor and other controls. The range finder comprises a beam-splitter 30 and mirror 31 along the axis of eye-piece 12, mirror 31 being rotatable by cam 36 and lever 34 against spring 33, a shutter 38 being rotated open on operation of the cam. In order to facilitate focusing of both images in the rangefinder, a block of refractive material 39 is introduced into the longer light path via the rotatable mirror. Rotation of the periscope tube by control handles produces a lateral shift of the image in the monitor while one handle controls vertical shift of the image corresponding to tilting of the sighting head on a periscope.
Patent GB-1158063-A (GB)
Title: Improvements in or relating to fluid valves and controls therefor
IPC: F16K31/524
Filed: 1967-09-04
Abstract: 1,158,063. Linkwork; valves. NUMATICS Inc. 4 Sept., 1967 [19 Dec., 1966], No. 40306/67. Headings F2K and F2V. A rotary control for a valve 38 comprises a control housing 50, an actuator shaft 60 mounted in the housing 50 transversely of the axis of motion of the valve 38, a recess in the shaft 60 forming a cam surface 70, and an operating plug 92 interposed between the cam surface 70 and the valve 38. The plug 92 has a chordal segment 98 to underlie the cam surface 70 and a pin 110 by means of which the plug 92 may be oriented in one of three positions with respect to a housing cup 80 in order to vary the manner in which rotation of shaft 60 actuates the valve 38. When the pin 110 is located at right-angles to the chordal flats of segmental portion 98, Figs. 2 to 5, rotation of shaft 60 in either direction causes actuation of valve 38. When the pin 110 is arranged at 90 degrees to this position, rotation of shaft 60 in one direction causes actuation of the valve 38 whilst rotation of shaft 60 in the other direction fails to operate the valve 38. When the pin 110 is located 180 degrees from the second position, the valve 38 is actuated only when shaft 60 is rotated in the other direction. The plug 92 contains a spring- pressed pin 102 having a head portion 104 adapted to engage the valve 38.
Patent GB-1184403-A (GB)
Title: Improved Process for the Production of 2,5-Diamino-3,6-Dihalogeno-p-Benzoquinones
IPC: C09B/
Filed: 1968-08-23
Abstract: 1,184,403. Benzoquinone derivative. J. R. GEIGY A.G. 23 Aug., 1968 [25 Aug., 1967], No. 40333/68. Heading C2C. 2,5 - Diamino - 3,6 - dihalogeno - p - benzoquinones, wherein the halogen atoms are Cl or Br are prepared by reacting tetrahalogeno-pbenzoquinones with ammonia, wherein the halogen atoms which react with ammonia are F, Cl or Br, in an aprotic dipolar organic solvent having a dielectric constant of at least 30 at 25 C. Examples of suitable solvents are dimethyl formamide, dimethyl acetamide, dimethyl sulphoxide, tetramethylene sulphone, acetonitrile, nitrobenzene and N-methyl pyrrolidone.
Patent GB-1082156-A (GB)
Title: Improvements in or relating to pipes
IPC: F16L47/08
Filed: 1964-10-02
Abstract: 1,082,156. Pipes. DYNAMIT NOBEL A.G. Oct. 2, 1964 [Oct. 2, 1963], No. 40353/64. Headings F2G and F2P. A pipe section 1 has one end 3 of greater diameter than the remainder to form a socket, the pipe being turned away from the end 3 to produce a double-walled portion 5 extending beyond the length of the socket in the direction of said remainder of the pipe walls. The said end may be formed with a corrugation 6 to receive a rubber or like sealing ring when another pipe 1<SP>1</SP> is inserted into the socket. The pipe is of synthetic plastic material. In manufacture the pipe-end is heated and the end is turned back at the same time as the socket is formed.
Patent GB-928149-A (GB)
Title: Improvements in or relating to heat exchangers particularly for thermo-electric generators of electricity
IPC: H01L35/30
Filed: 1961-11-10
Abstract: 928,149. Tubular heat-exchange elements. SIEMENS-SCHUCKERTWERKE A.G. Nov. 10, 1961 [Nov. 10, 1960], No. 40413/61. Class 64 (3). A heat exchanger tube 1 has fins 2 projecting inwardly from the inside surface thereof to an extent which progresses in one axial direction of the tube, the tube also containing an insert 3 arranged coaxially in the tube 1 and whose transverse cross-sectional area increases progressively in said one axial direction. As shown, hot gas entering at A flows through a passage which is continually reduced in crosssectional area axially of the tube 1. In the form described, thermo-electric elements (not shown) have their " hot junctions " in thermal contact with the outside of tube 1 which is of uniform temperature.
Patent GB-1062259-A (GB)
Title: Improvements in or relating to vehicles
IPC: B62D5/09
Filed: 1964-10-06
Abstract: 1,062,259. Vehicle power steering. C. VAN DER LELY N.V. Oct. 6, 1964 [Oct. 24, 1963 (3)], No. 40794/64. Heading B7H. In a vehicle with power steering and a swashplate controlled hydrostatic transmission a control valve 74 is provided which throttles the hydraulic supply to the steering mechanism when the pump swashplate angle is set for greater than a certain vehicle speed. Normally pressure fluid passes from inlet pipe 102 (Fig. 6) through bore 84 of plunger 83, holes 93 and 92, passage 75 and pipe 73 to the steering control valve but as the angle of the swashplate 107 is increased plate 106 successively contacts and depresses cap 98 of piston 97 progressively obturating hole 92 and throttling the flow. Since the chamber below plunger 83 communicates through passages 105 and 104 with outlet passage 75, as the flow is throttled and the outlet pressure reduced plunger 83 is pushed down by the inlet pressure against the loading of spring 90 and the outlet pressure thus connecting the inlet through annulus 86 and passage 100 with pipe 103 to an hydraulic reservoir. The tractor is steered by a pair of levers 8, 9 (Fig. 2), which are mounted on each side of the driver's seat, which is pivotable about an axis coaxial with the axis of crank pin 13 in the straight ahead steering position, and are connected through cranks 14 and 16 on shaft 15, rod 18 slidable in sleeve 19 pivoted to the frame, coupling rod 23, lever 25 and link 44 (Fig. 3) with the spool of open centre steering valve 47. The connection between the levers 8, 9 and rod 23 is such that equal increments of lever movement from the mean position provide increasing increments of rod movement. Valve 47 when displaced for steering directs pressure fluid from inlet 68 and control valve 74 to either annulus 60 or 57 and hence to one or other end of power cylinder 34, exhaust fluid passing through the other annulus and port 69 or 70 to the fluid reservoir. Rack 33 on the power piston engages gear 32 on the vertical pivot shaft of the single steering wheel and since pivot 26 of lever 25 is mounted eccentrically on gear 32 a feedback is provided to valve 47 to centralize the valve spool when a steering movement is completed.
Patent GB-1147638-A (GB)
Title: Production of gramophone records
Inventor: GUNN-RUSSELL CHARLES
IPC: B29C43/02
Filed: 1965-09-24
Abstract: 1,147,638. Moulding gramophone records. C. GUNN-RUSSELL. 12 Oct., 1966 [24 Sept., 1965], No. 40879/65. Heading B5A. [Also in Division G5] Gramophone records are produced from thermoplastic sheet material in a press, the material being made workable by dielectric heating during the pressing. As described, the press platens are water-cooled. The material may be fed stepwise in continuous form and may be laminated to paper, cardboard or other material, possibly bearing printed matter, either before or during the pressing.
Patent GB-1279165-A (GB)
Title: Polymers and method of producing same
IPC: C08F8/50
Filed: 1970-08-25
Abstract: 1279165 Lactone-containing polymers FIRESTONE TIRE & RUBBER CO 25 Aug 1970 [25 Sept 1969] 40911/70 Heading C3P A polymer containing gamma-lactone groups in the chain is obtained by heating to above 150‹ C. in the presence of a stabilizer, a copolymer of (a) a dialkyl maleate or fumarate having 1-8 carbons in each alkyl group and (b) a vinyl or vinylidene halide. The pyrolysis removes alkyl halide from adjacent ester and halide groups.
Patent GB-1467240-A (GB)
Title: Television systems
IPC: H04N7/088
Filed: 1973-09-04
Abstract: 1467240 Television GENERAL ELECTRIC CO Ltd 4 Sept 1974 [4 Sept 1973 31 Oct 1973] 41445/73 and 50616/73 Heading H4F A combined television/data system in which data is transmitted during the vertical blanking periods of a television signal, this data being separated therefrom at a receiver and displayed on a monitor (e.g. a standard television receiver) as a "page". The system is capable of selectively displaying any one of a plurality (e.g. 30) different pages of data each such page consisting of for example 24 data lines each of which may have up to 40 alpha-numeric characters. One line of data of a page is transmitted during a line period of each vertical blanking period, the first line period of such a series of line periods corresponding to a data page being used solely to transmit the page address. At the receiver the desired data page is selected in response to the page address and then the successive data lines are stored until the complete page is stored and then displayed via a character generator since the characters in the data lines are usually transmitted in binary form. Specifically the page address data line includes a run-in pattern of 10 bits to synchronize a clock generator in the receiver; a 3 bit start code; a 14 bit characteristic data line address representing a line other than one of the 24 data lines that form a data page, these 14 bits including parity bits; a 14 bit page number address; 28 bits characterizing the current time; and a group of bits characterizing special instructions such as captions and news flashes, graphic or alphanumeric data, data store cancelling data and redundancy check bits. Subsequent data lines, e.g. 24 data lines (one in each of the next 24 frame blanking periods) include the run-in and start codes; an appropriate data line address; up to 280 bits to characterize up to 40 characters; and redundancy check bits. In the display each character and therefore line of characters displayed extends over twenty adjacent scan lines (includes 6 blank scan lines for a space between lines of characters) and thus for each data line, line scan video signals are sequentially derived from the character generator from one data line signal read from the memory. Interlaced scanning may be employed. The information transmitted in respect of each character may include a colour component which is arranged to be stored in the memory along with the character identity. Preferably the extra colour information, for example in respect of a complete data line, is transmitted in the line scan period that contains the page address. Instead of alpha-numeric data graphical data may be transmitted.
Patent GB-1091574-A (GB)
Title: Improvements in and relating to the moulding of plastics materials
Inventor: ROBERTSON JOHN RUSSELL
IPC: A47C7/18
Filed: 1964-10-13
Abstract: 1,091,574. Seats. UNIROYAL Ltd. Oct. 7, 1965 [Oct. 13, 1964], No. 41699/64. Heading A4J. [Also in Division B5] A seat comprising an integral squab 2a and a back rest 2b connected by a hinge portion 5a is made by preheating a thermoplastic cover sheet to 300‹F.-380‹F. and placing it in a mould Fig. 1 (not shown). The cover is drawn to the mould by vacuum forming and filled with polyurethane foam-forming reactants. When the foamed filling is set, the seat is removed from the mould and inverted, as shown, spaced web 4a preventing the squab and back rest portions from bending downwardly out of alignment, while the obtuse angle between adjacent opposed faces 3a permits the chair to be folded to the normal position, Fig. 3 (not shown), and to be attached by pins concealed under a beading 6 to a wooden backing which is subsequently secured to a steel frame 7.
Patent GB-417038-A (GB)
IPC: D01H5/26
Filed: 1934-04-26
Abstract: 417,038. High draft apparatus provided with endless belts. CASABLANCAS, F., 166, Calle de Fernando Casablancas, Sabadell, Barcelona, Spain. April 26, 1934, No. 12633. Convention date, May 26, 1933. [Class 120 (ii).] In high draft apparatus using endless belts, especially when wide belts are used as in drawing-frames, flyer frames, and mules, one or both rollers 1, 2 carrying the belts 3, 4 are provided with recessed parts 10, 11, staggered longitudinally and circumferentially, as shown, and of less length than the rollers, so that when such parts pass through the nip the pressure on a part of the belts is momentarily relieved, thereby enabling the belts to accommodate themselves to any incipient lateral deviation due to any inequality of dimension or material of the belts.
Patent GB-976617-A (GB)
Title: Improvements in or relating to a composition suitable for lining casting moulds and hot tops
IPC: B22C23/02
Filed: 1963-10-23
Abstract: A refractory composition comprises a finely-ground refractory material, an organic fibrous material and/or a binder.  The refractory material constitutes the major proportion of the composition and of this material at least 50% by weight will pass through a 20 mesh (0.84 mm.) screen, at least 20% but not more than 90% will pass through a 140 mesh (0.105 mm.) screen, and at the most 60% will pass through a 270 mesh (0.053 mm.) screen. The refractory material may comprise quartz, silicate, olivine, furnace slag and magnesium oxide mixed together or one single constituent may be used. The organic fibrous material may be waste paper, paper pulp or plant fibres and may be combined with asbestos or rock wool.  The binder may be glues, resin glue or waterglass.  Examples of particular compositions are given in the Specification.  Specification 888,857 is referred to.