baber/WOPTO huggingface dataset:
Patent GB-807698-A (GB)
Title: 3,4-dihydro-2h-1,3-benzoxazines
Inventor: RIGTERINK RAYMOND HENRY
IPC: C07D265/16
Filed: 1957-07-12
Abstract: The invention comprises new 3,4-dihydro-2H-1,3-benzoxazines having the general formula <FORM:0807698/IV (b)/1> in which R is an alkyl radical containing from 4 to 7 carbon atoms having a straight-chain of at least 3 carbon atoms attached directly to the aromatic nucleus. They may be prepared by reacting cyclohexylamine with formaldehyde and reacting the product with the appropriate 4-alkylphenol.  In carrying out the process a molecular proportion of the amine is added to two molecular proportions of formaldehyde in a solvent such as methanol or ethanol.  To the product is added one molecular proportion of the phenolic compound and the mixture is heated. The required substituted benzoxazine is separated from the resulting mixture.  In the examples the above process is carried out using the appropriate alkyl phenols to give compounds of the above formula in which R is (a) secondary butyl, (b) 1-methyl butyl, (c) tertiary amyl, (d) normal pentyl, (e) 1-methyl-1-ethyl butyl, and (f) 1,1-dimethyl butyl.  The alkyl phenols used as starting materials may be prepared by reacting the appropriate alkanol with phenol in the presence of aluminium chloride at 20-45 DEG  C.
Patent GB-730262-A (GB)
Title: A device for measuring the average temperature of a liquid in a closed container
IPC: G01K13/10
Filed: 1953-08-13
Abstract: 730,262. Thermometers. NORDNES, H. Aug. 13, 1953 [Aug. 14, 1952], No. 22341/53. Class 97 (3). A device for measuring the average temperature of a liquid in a closed container 7 which is completely filled with the liquid and which is connected to an expansion container 3 situated above container 7, is characterized in that the container 3 is provided with a transparent wall 4 and a temperature scale, which is so graduated that each temperature figure corresponds to the level of liquid in container 3, which in turn corresponds to the average temperature in container 7. Air pipes 1, 2 connected respectively to containers 7, 3 may be fitted with condensers to avoid loss of liquid through evaporation.
Patent GB-358418-A (GB)
Title: Improvements in micro-telephones
IPC: H04M1/03
Filed: 1930-07-14
Abstract: 358,418. Sets. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Telephonu. Telegraphenfabriks Akt.-Ges. Kapsch-u. S÷hne; 9, Johann Hoffmannplatz, Vienna.) July 14, 1930, No. 22379/31. Divided on 358,921. [Class 40 (iv).] In a micro-telephone having a handle 31 made from pressed material, the latter at its ends is provided with extensions 32, 33 having flat faces on which are disposed the necessary terminals, contact pins and contact springs for co-operating respectively with the receiver 38 and with the transmitter or microphone 46, while recessed caps 36, 37 are adapted to be screwed on or otherwise attached to the handle to retain the receiver and transmitter in position. As shown, the receiver 38 is fitted with insulated eyes 42, 42<1>, which fit tightly on contact pins 41, 41<1> on the extension 32 and have soldering ears 45, 45<1> for connecting the current-carrying wires. A suspension ring 55 may also be attached to the extension 32 by screws 56, 57. At the opposite end the microphone 46 is pressed against the contact springs 52, 53 and retained there solely by means of an internal shoulder 54 on the screw cap 37. The flat face of the extension 33 is grooved at 47 to accommodate a connecting cord.
Patent GB-473163-A (GB)
Title: Improvements in devices for circulating liquids and for reversing the direction of flow thereof
IPC: D06B23/00
Filed: 1936-08-15
Abstract: <PICT:0473163/IV/1> Liquid in a dyevat, tank or other container is reversibly circulated by air forced by pressure of steam by means of a steam-air injector upwards through either one of two ducts in the tank.  The injector communicates with a rotatably mounted perforated pipe d which may be turned by a handle M to discharge, through holes or nozzles, into one or other of two ducts D<1>, D<2>.  The duct D<2> extends upwards from or below the level of the bottom of the material in the vat or tank to above the top of the material, and the duct D<3> extends upwards from near the bottom of the duct D<1> into an elevated tank or reservoir E.  A duct D<3> extends from the reservoir E to the space below the material in the vat.  A pivoted flap F, connected to the pipe d by a link f<1>, closes the bottom of the duct D<1> when the injector is discharging into the duct D<2>. A pivoted deflecting plate G operated by a handle g is arranged as shown at the top of the duct D<1> to deflect the current of liquid when the injector is discharging into the duct D<1>. The material to be treated, e.g. yarn in hank form, hose and other small articles, is suspended on sticks or rods b from an upper grid a, or is placed in a cage in the tank.
Patent GB-240005-A (GB)
Title: Improvements in or relating to electric circuit-breakers
IPC: H01H3/30
Filed: 1924-09-24
Abstract: 240,005. Electrical Improvements, Ltd., and Gregory, R. W. Sept. 24, 1924. Automatic circuit-breakers; switches, quickbreak; oil switches; bases; contacts; switches, actuating.-In a circuit-breaker contacts mounted on the ends of springs and held together by retaining contacts are arranged so that, when one of the retaining contacts is moved by the release of the spindle by which it is carried, the spring- mounted contacts fly apart, so producing a sudden and long break of the circuit. As shown in Fig. 1, wedge-shaped contacts J secured on the ends of springs K are retained between the inclined faces E<1>, F<1> of retaining contacts E, F, the former fixed and the latter carried by a vertically movable spindle comprising metal parts B, B<1> connected by an insulating part B<2>. When this spindle is released it is moved downwards by the spring C lowering the contact F and permitting the contacts J to fly apart to the position shown in Fig. 4. The spindle is connected to a pivoted lever P by a pin and slot connection so that when this lever is rotated and held in position by a spring controlled catch R which engages the lever, the retaining contact is raised to its former position, from which it can be released by an electromagnet T. The spring contacts are connected by flexible leads L to a box shaped member K<1> housing the ends of the springs K and carried by the insulators H depending from the lids A<1>. Normally as shown the members K<1> are gripped by spring-clip contacts K<2> mounted on insulators supported from the bottom of the oil-containing switch case A and connected to the incoming leads. When, however, the lid is opened the members K<1> leave the clip-contact K<22> and the spring contacts may be replaced by extending the springs K and slipping the contacts J sidewise into the spaces between the retaining contacts E. F. The retaining contacts corresponding to the three phases of a threephase switch may be arranged so as to be simultaneously controlled and released by a single electromagnet.
Patent GB-150304-A (GB)
Title: Improvements in or relating to aerial surveying by photography
IPC: G03B15/00
Filed: 1920-07-29
Abstract: 150,304. Optische Anstalt C. P. Goerz Akt.-Ges. Aug. 29, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Photographic surveying.-The landscape is photographed from two aircraft and at least one of the aircraft is photographed from the other, the photographs being taken simultaneously or at a small known interval. The two aircraft form an " aerial base " the length of which is determined from the photograph of the one craft taken by the other. To facilitate this measurement the aircraft to be photographed may tow a sail on which are two marks separated by a known distance. The photograph of the aircraft may either be superposed on that of the landscape or it may be taken by a separate camera.
Patent GB-1293565-A (GB)
Title: Aminophthalazines and pharmaceutical compositions thereof
Inventor: RODWAY R E
IPC: C07D237/34
Filed: 1969-05-03
Abstract: 1293565 Phthalazine derivatives ASPRONICHOLAS Ltd 30 April. 1970 [3 May 1969] 22679/69 Heading C2C The invention comprises compounds of formula  and their acid addition salts and quaternary ammonium derivatives, wherein R is aryl or aralkyl; R 1  is cycloalkyl, cycloalkylalkyl, heterocyclyl or heterocyclylalkyl, and R 2  is the same or H, or NR 1 R 2  is a 5-7-membered heterocyclic ring containing N, O or S as heteroatoms; and R 3 , R 4  are each H or a substituent as defined in the Specification. These compounds are prepared by reacting with HNR 1 R 2  an appropriately substituted phthalazine having, instead of NR 1 R 2  in the desired product, halogen, alkylthio or arylthio, or the corresponding sulphoxide or sulphone groups, followed, if necessary, by conversion by known methods of one substituent group to another. Pharmaceutical and veterinary compositions for oral, parenteral or rectal administration, comprise compounds of the above formula, which have anti-inflammatory (in particular antirheumatic) activity, and in some cases immunosuppressive activity.
Patent GB-1329337-A (GB)
Title: Apparatus for scanning and evaluating markings
IPC: B65G47/49
Filed: 1971-04-19
Abstract: 1329337 Sensing marks on packets G A O GES FUR AUTOMATION UND ORGANISATION mbH 19 April 1971 [30 April 1970] 22699/71 Heading G4M A device scanning two dimensional markings on a packet 2, consisting of a clock track 5 and a data track 6, relative movement taking place between the packet and scanning device has, for each track, a reading station containing two optical sensors 14, 15 or 16, 17 located beside each other in the direction of packet conveyance. The clock track contains equally spaced markings 11 and the data track has markings having a transition between clock track markings to indicate a "1" and an absence of a transition between clock track markings to indicate a "0". The sensors are spaced by a distance corresponding to the clock track markings and contain a lens and a mask arranged so that only the central portion 18 of the markings are examined. The outputs of the clock track markings are fed to a differential amplifier arranged to feed a Schmitt trigger when the two sensors have equal values (Fig. 4a). The trigger enables a gate passing the signal from a differential amplifier coupled to the data track sensors such that if one sensor detects a mark and the other detects the absence of a mark a "1" is indicated and if both sensors detect a mark or the absence of a mark a "0" is indicated (Fig. 6, not shown). The sensors are not affected by difference in positioning between the packet and sensors, by blurring of the markings or by decrease in contrast due to ageing.
Patent GB-761294-A (GB)
Title: A machine for generating gears
IPC: B23F5/22
Filed: 1954-08-05
Abstract: 761,294. Gear-cutting and finishing. SCHIESS AKT.-GES. Aug. 5, 1954 [Aug. 12, 1953], No. 22705/54. Class 83 (3). A gear-generating machine comprises a tool-saddle 14 movable parallel to the axis of the work W and carrying a swivel-type shaving head 21 adjustable on the saddle, both radially of the work and parallel to the tool-saddle guideway. The cutter S swivels on a base 22 movable on an inclined guideway 25 for the radial adjustment. The guideway 25 may be fed along a slideway 20 by a motor-driven screw. The work-table 10 is rotated on a V- shaped track by a motor 32 and gearing 33- 35 to give a circumferential speed to the work of 100 metres/min. For hobbing gears, the slideway 20 is replaced by an angularlyadjustable hobbing-head 15. The hob is set radially by adjustment of the column 13 or, in a modification, by lateral movement of the work-table. The work is rotated during hobbing, by a motor 18 and a worm 29 which is disengaged from its wheel 30 during shaving.
Patent GB-706578-A (GB)
Title: Improvements in or relating to radio or radar antennae
Inventor: POLLARD PHILIP EDWARD
IPC: H01Q25/00
Filed: 1951-09-29
Abstract: 706,578. Directive radio systems. MINISTER OF SUPPLY. Sept. 29, 1952 [Sept. 29, 1951], No. 22782/51. Class 40 (7) A radio aerial system comprises a pair of lenses 6, 7 arranged spaced apart on a common axis, a pair of plane reflectors 8, 9 each transparent to radiations polarized in different ones of two orthagonal directions disposed between the lenses with their reflecting surfaces at right angles to each other and at 45 degrees to the common axis of the lenses, and a radiator or radiators positioned on one side or on each side of the reflectors so as to direct radiations towards said reflectors for reflection into one or the other direction through one of the lenses according to the polarization of the radiations. The system is preferably constructed within a substantially cubic supporting framework 1 as shown and the support may be mounted so as to be rotatable about a horizontal axis on trunnions 2, 3. Feed lines 10 to the radiator or radiators are taken axially through the trunnions. For adjustment about a vertical axis to the trunnions 2, 3 and transducer 11 may all be rotated on a turntable 4, 5. The lenses may be capacity delay, plate, or waveguide lenses and preferably pass wave energy polarized in any direction. The reflectors can be of the parallel wire type and the radiators waveguide horns. A receiving element aerial may be substituted for one of the radiators and a circular polarizer placed in front of the lens used so that the transmission and reception paths lead to different primary elements, as is convenient for a radar system.
Patent GB-186793-A (GB)
Title: Improvements in hand appliances for beating fabrics, cushions and other articles
IPC: A47L13/36
Filed: 1921-08-30
Abstract: 186,793. Mitchell, J. G. Aug. 30, 1921. Carpets, furs, rugs, and the like, beating.- Loops of wire, either plain or crimped or coiled, are embedded in rubber sheathing and fixed to a handle to form a beater for cushions and like fabrics. The handle 1 has at one end inclined holes 2 for the reception of the ends 3 of loops of helically-coiled wire embedded in rubber 4, the ends being held in place by pouring lead into the holes through the aperture 6. The loops are held apart by a clip 5 and are pressed into recesses 7 in the handle by passing a ferrule over the handle, so that they take up the form shown by the broken lines. In modifications the holes 2 are drilled at the end of the handle instead of at the side, or a tubular metal handle may be contracted upon the ends of the loops to hold them.
Patent GB-989646-A (GB)
Title: Improvements in folded dipoles
Inventor: MORGAN JOHN TREVOR
IPC: H01Q9/26
Filed: 1962-06-15
Abstract: 989,646. Aerials. BELLING & LEE Ltd. July 5, 1963 [June 15, 1962], No. 23049/62. Heading H4A. A folded dipole assembly for Band IV or V television reception comprises a feed cable and a substantially rectangular planar metal sheet in which is formed a slot extending in the direction of the length dimension of the sheet and being offset from the centre line so that the aerial impedance matches that of the cable. The aerial may be mounted on a crossarm by means of lugs formed from the metal sheet.
Patent GB-1330100-A (GB)
Title: Epoxy resin composition
IPC: H05K1/00
Filed: 1972-05-17
Abstract: 1330100 Epoxy resin composition INTERNATIONAL BUSINESS MACHINES CORP 17 May 1972 [28 June 1971] 23056/72 Heading C3B [Also in Division G2] An epoxy resin composition comprises: (I) an epoxy resin having an epoxide equivalent weight of 800-2000; (II) an amine curing agent, (III) a halogenated polycarboxylic anhydride; and (IV) a halogenated hydrocarbon solvent. I may be a diglycidyl ether of bisphenol A or resorcinol or an epoxy novolac resin. II may be methylenedianiline, phenylenediamine, diaminodiphenylsulphone, diethylenetriamine or triethylenetetramine. III may be chlorendic, dichloromaleic, tetrabromo- or tetrachlorophthalic, dichlorocitraconic or a halogenated derivative or tri- or pyro-mellitic anhydrides. I may comprise 5-30% by wt., II may comprise 2-12% by wt. and III 1-5% by wt, each of the total composition. Uses.-In preparing positive photoresist images.
Patent GB-1162281-A (GB)
Title: An Improved Method of Construction of Electronic and like Electrical Apparatus
Inventor: WHITTINGTON ROBERT JOHN
IPC: H05K7/14
Filed: 1967-05-18
Abstract: 1,162,281. Brackets. R. J. WHITTING- TON. 14 May, 1968 [18 May, 1967], No. 23167/67. Heading A4B. [Also in Division H1] An electronic assembly on a printed or other circuit board 13, Fig. 1, is mounted in a housing by slotting the board into two grooved guides 12 provided with resilient studs 11 which are located in perforations in parallel side walls 2, 3. The grooved guides and studs may be moulded integrally of plastics material, the studs being shaped to be releasably or non-releasably located in the perforations, Figs. 4-6 (not shown). A guide may be formed of a number of sections each provided with two studs and perforated between sections so that it may be subdivided to provide guides of varying length. The guides may be provided with depressions as well as studs so that two guides may be arranged on opposite sides of a perforated wall with the studs of one guide registering with the depressions in the other guide. pass through slots having cut-away lower ends in the bracing member, or the top member is of box section, enclosing strip lighting, and has a transparent or translucent lower face. The guides may be fixed permanently in place by heating and distorting the studs or may be fixed with additional screws through the perforated wall and perforations in the guides.
Patent GB-1284761-A (GB)
Title: Generation of negative ions
Inventor: TOPLEY CHARLES WILFRED
IPC: A61N1/44
Filed: 1969-05-07
Abstract: 1284761 Respiratory apparatus C W TOPLEY 7 Aug 1970 [7 May 1969] 23203/69 Heading A5T [Also in Division H1] Negative ions are produced by passing a stream of gas and water vapour not containing any water droplets through a corona discharge of at least 6500 volts. An evaporator 1 contains a fan which sucks air from the atmosphere over wicks 2 dipping into distilled or deionized water and exhausts it through a convergent channel 3 to a tunnel 4 and a discharge nozzle 8. Tunnel 4 contains a semi-cylindrical positive electrode 6 and a spike electrode 5 connected to a generator 7 producing a voltage of -7500 volts. Alkali, alkaline earth and other metals, and other chemical compounds useful in the treatment  of respiratory conditions may be added to the  gas stream.
Patent GB-300339-A (GB)
Title: Improvements in and relating to the manufacture of tickets, showcards and the like
IPC: B41M1/24
Filed: 1927-09-05
Abstract: 300,339. McCollum, D. V., and Walpole, G. S. Sept. 5, 1927. Embossing. - In the cutter-crush process for forming embossed showcards, tickets, and the like, the card is subjected to heat treatment after the embossing operation. This may be carried out by means of a press, one or both of the pressure members of which may be heated by electrical, gas, or other suitable means provided, if necessary, with temperature-controlling devices. A hot iron, calendering machine, or other means may be employed, and in some cases, a sheet of metal is placed between the heated member and the card. By this process, embossed cutter-crush designs may be applied to leather, thin and soft wood, surfaces such as cardboard faced with veneer, and waterproof or grease-proofed boards, and in place of the coloured paper, gelatine, metal foil, or gummed wood veneer may be employed. Specification 292,804 is referred to.
Patent GB-482036-A (GB)
Title: Improvements in or relating to metal-vapour discharge tubes
IPC: H01J61/35
Filed: 1937-08-25
Abstract: 482,036. Glass manufacture. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Aug. 25, 1937, No. 23348. Convention date, Aug. 28, 1936. Drawings to Specification. [Class 56] [Also in Group XL] The envelope of a metal-vapour discharge tube is formed of glass having a composition of 78 per cent SiO2, 12 per cent Al2O3 and 10 per cent CaO, and is protected against the action of magnesium vapour by a coating of magnesium oxide. This is formed by exhausting the tube and heating to about 500 C. with the admission of magnesium vapour until a slight attack on the glass is shown. Moist air is then admitted and the tube heated to about 600 C. until the magnesium on the glass surface is oxidized and the slight discoloration disappears. Parts of the envelope are further protected against the action of the hot metal by a strip of zirconium which is glued on by water-glass. Alumina may be used as the additional protective coating instead of zirconium.
Patent GB-263218-A (GB)
Title: Improvements in testing thermionic valves, lamp bulbs and the like
IPC: H01J9/42
Filed: 1925-09-19
Abstract: 263,218. Sutton, C. J. Sept. 19, 1925. Faults, testing for.-A device for testing thermionic valves &c. comprises a receptacle having two compartments 6, 2d, one compartment containing a battery and the other a voltmeter so that they may be readily applied to connect the valve &c. in series with the voltmeter and battery. As shown, two contact pieces 6<a>, 6<b> extending from the compartment 6 are connected respectively to the voltmeter 12 the battery 5, the other terminal 5<a> of which is also connected to the voltmeter. An additional contact piece 12b extends from the terminal 5a to the outside of the receptacle so that the contact pieces 6<a>. 12b may be used with the voltmeter for any usual purpose.
Patent GB-223222-A (GB)
Title: Improvements in trepanning instruments
IPC: A61B17/16
Filed: 1924-10-04
Abstract: 223,222. Jentzer, A., and Courvoisier, H. Oct. 12, 1923, [Convention date]. Trephining-appliances. - A trephining-appliance comprises two instruments for cutting holes of different sizes, the instrument for cutting the smallest hole consisting as shown in Fig. 1 of a shaft 1, the lower end 2 of which is screwed into a small hole made in the skull by a surgical borer. The cutter 6 is screwed on the exterior of the shaft 1 and is rotated by handles 7, a spring 9 being interposed between a flange 8 on the cutter and the skull. When the hole has been made a larger hole can be cut by the appliance shown in Fig. 2, which comprises a shaft 10 the lower end 11 of which is divided radially at 12 and fits within the hole in the skull made by the appliance shown in Fig. 1. The end 11 of the shaft 10 is expanded to produce a tight fit by means of a rod 13 which screws within the shaft 10 and has a conical lower end 15. The cutter 23 is screwed at 21 to a ring 17 which is screwed on the exterior of the shaft 10 and is rotated by handles 18. The ring 17 is reversible and holes of intermediate size can be cut by reversing the ring 17 and screwing a cutter on the smaller end 22. Fig. 5 shows the lower end of a cutter, 26 being the actual cutting edge which is normally protected by a spring portion 27. When the cutter is pressed upon the skull the spring 27 is depressed and exposes the edge 26.
Patent GB-859842-A (GB)
Title: Improvements relating to reels for fishing rods
Inventor: YOUNG EDWARD EMLYN
IPC: A01K89/016
Filed: 1958-07-22
Abstract: 859,842. Fishing reels. YOUNG & SONS Ltd., J W. July 20, 1959 [July 22, 1958], No. 23444/58. Class 48. A cup shaped back plate a for a fishing reel is provided with headed studs d which are engaged with apertures in the back plate a, the shanks of the studs being grooved to co-operate with looped parts of springs e or pawls c controlled by a springs e. The heads of the studs and the apertures therefor in the back plate are stepped and the springs or pawls hold the studs in position with the heads of the studs flush with the rear face of the back plate. The pawls c have slots into which the shanks of the studs fit. A C-shaped spring wire guard g, Fig. 3, is mounted on three pillars h mounted on pins i extending from bosses a <5> on the back plate. The wire guard has arcuate grooves g<1> which co-operate with the heads i 1 of the pins i and the pillars h have slots h<1> which co-operate with the wire guard g.