baber/WOPTO huggingface dataset:
Patent GB-1206771-A (GB)
Title: Coating of plastic articles
Inventor: STEEL MARGARET LILIAN
IPC: C23C14/10
Filed: 1967-02-07
Abstract: 1,206,771. Transparent coatings. IMPERIAL CHEMICAL INDUSTRIES Ltd. 26 Jan., 1968 [7 Feb., 1967], No. 5840/67. Heading B2E. [Also in Division C7] A process for providing a surface of a sheet plastics article with a hard transparent coating comprises exposing the surface under vaccum to the emission caused to be admitted from at least one of a refractory oxide, carbide, silicide, nitride, or boride and/or a glass by bombarding it with accelerated electrons under vacuum. The sheet plastics article may be a transparent sheet or film such as a sheet of methyl methacrylate polymer. Numerous suitable refractory compounds are specified. The plastics article may first be coated with a thin, transparent primer coating, which may be of a metal such as copper, aluminium or nickel. Such metallic coating may be up to 300Š thick.
Patent GB-675471-A (GB)
Title: Thermionic valves
IPC: H01J21/02
Filed: 1948-02-26
Abstract: 675,471. Thermionic valves. RADIO PATENTS, Inc. Feb. 26, 1948 [May 19, 1949], No. 5886 48. Class 39 (i). A thermionic valve employing an " internal cathode " comprises an elongated cathode 6, a positive space charge grid 1, a control grid 2, a screen grid 3 and an anode, the control grid having substantially the same shape as the cathode and the space charge grid having substantially the same shape as the screen grid, which is different from the shape of the cathode. The first two are preferably circular and the last two oval. It is explained in the Specification that with such a construction it is possible to obtain higher mutual conductances than have hitherto been obtained with this type of valve; various modes of operation are described. Specification 675,469 is referred to.
Patent GB-800115-A (GB)
Title: Improvements relating to hand and arm shields for protection against radiation
Inventor: DYKE NEVILLE
IPC: G21F3/035
Filed: 1956-02-27
Abstract: 800,115. Radiation shielding. ROTHBAND & CO., Ltd., W. S. Jan. 28, 1957 [Feb. 27, 1956], No. 5988/56. -Class 98(1) A hand or arm shield for protection again radiation such as X-rays consists of an elongated sheet of resilient material such as rubber, loaded with lead, with means near one end for securing it around the wrist and forearm, the other end extending over the back of the hand and fingers while leaving the palm of the hand uncovered. As shown, the sheet 1 of rubber loaded with lead has a fabric lining 2 and is long enough to shield the hand and forearm. Straps 3, 4 hold it to the wrist and forearm, and an elastic band 5 passes round the shield and fingers, leaving the forearm free.
Patent GB-452401-A (GB)
Title: Improvements in and relating to alloys for dental plates
IPC: C22C30/02
Filed: 1936-02-28
Abstract: Alloys for dental plates consist of 20-40 per cent of palladium, 35-65 per cent of silver, 15-30 per cent of copper, and 0,5-0,25 per cent of phosphorus.  The ratio of silver to copper is preferably about 2,5 : 1, and proportion of palladium is preferably not less than 30 per cent.
Patent GB-913660-A (GB)
Title: Process for the construction of concrete hearths for furnaces of the superposed hearth type and furnaces so constructed
IPC: F27B9/18
Filed: 1959-02-23
Abstract: 913,660. Furnace hearths. DANIEL, A. Feb. 23, 1959 [March 13, 1958], No. 6076/59. Class 51 (2). In a method of constructing concrete hearths in furnaces of the superposed hearth type, the hearths are cast in sectors, each sector having a hearth portion disposed radially of the kiln cast in one piece with the corresponding part of the cylindrical body of the kiln and by which it is supported. A kiln 1, Fig. 1, comprises superposed concrete annulae, each of which forms a hearth and is cast in self-supporting, monolithic sectors, each sector of which has a radially extending hearth portion 4b and a portion forming the cylindrical wall 1b of the kiln, the kiln wall having an outer metal casing 2. The sectors have cavities 5a, 5b on the undersides which communicate by openings 7, 7<SP>1</SP> with holes 6, 6<SP>1</SP> in the sectors for the passage of gas, and superposed annulae are united by tongue and groove joints 8b, 9a. In a modification the sectors are formed by slabs 13, 13<SP>1</SP>, Fig. 4, supported by radially extending beams 10, 11, 12 which are integral with the kiln wall and which form cavities 5b, 5<SP>1</SP>b in the undersides of the sectors.
Patent GB-798291-A (GB)
Title: Drying of charged accumulator plates in continuous operation
IPC: F26B25/00
Filed: 1957-02-22
Abstract: 798,291. Drying accumulator plates. CLYDE BATTERIES PTY., Ltd. Feb. 22, 1957, No. 6083/57. Class 34(2) Accumulator plates are dried by a drying medium which is circulated through the plates and converts the moisture therein into super-heated steam. In the embodiment described, the plates 9 suspended from hooks 8 on a conveyer 7 pass through a drying tunnel and are dried in sections 3 and 4 by steam which is circulated by a fan 22 and heated in a heat exchanger 21 having a valve-controlled inlet 25 for additional steam. The plates then pass through section 5 where they are cooled by unheated steam from section 4. The plates pass through a washing tank and water seat before entering the drying tunnel.
Patent GB-967364-A (GB)
Title: Superconductive switching network
IPC: H03M1/00
Filed: 1961-02-20
Abstract: 967,364. Analogue-to-digital converters. INTERNATIONAL BUSINESS MACHINES CORPORATION Feb. 20, 1961, [Feb. 24, 1960], No. 6126/ 61. Heading G4H. [Also in Division H3] An analogue-to-digital converter comprises a plurality of pairs of cryotrons K12-K25 each having a winding supplied from a source 10 of variable current I A , and each having a bias winding supplied with respective bias currents I B -I 0 , the sense of the windings and the magnitudes of the bias currents being such that when I A  is zero, cryotrons K12-K18 are superconducting and cryotrons K19-K25 are resistive, and as I A  increases by successive predetermined increments the states of successive pairs of cryotrons K18 and K19, K17 and K20, and so on, are reversed so that current flows from source A 0  through those cryotrons K12-K18 which are superconducting then through one of cryotrons K19-K25 to one of output leads 31-37. When I A  is zero, current flows from source A 0  to lead 30. Leads 31-37 are connected to control windings of cryotrons K54-K57; K59, K60 and K62, respectively supplied by current sources 53, 58, 61 to provide a binary-coded output signal indicating the magnitude of the input current I A  on leads 50-52. The bias currents for cryotrons K12-K25 may be obtained by inducing continuously circulating currents in superconducting loops which include the bias windings. Thin-film cryotrons may be used. Specification 862,178 is referred to.
Patent GB-737905-A (GB)
Title: Improvements in containers for ink and similar writing liquids
IPC: B43L25/02
Filed: 1953-03-05
Abstract: 737,905. Ink bottles. MOSTYN, R. Jan. 21, 1954 [March 5, 1953], No. 6157/53. Class 146(3). An ink bottle 1, with a removable cap 5 and a pocket 6 arranged to receive the nib of a pen inserted through the bottle mouth 4 and dimensioned, e.g. by tapering, so that a very small quantity of ink provides adequate immersion, is form. ed in its wall above the pocket mouth with a groove 8 leading into the pocket to direct the ink thereinto when the bottle is tilted. The pocket 6 may be made integrally with the bottle as shown, or may be attached after forming in the same or a different material.
Patent GB-201111-A (GB)
Title: Improvements in pipe connections
IPC: F16L19/04
Filed: 1923-03-03
Abstract: 201,111. Law, B. E. March 3, 1923. Joints with longitudinal pressure and with yielding outer part cowpressed.-In a joint for soft metal pipes in which the flared ends A<1> of the pipes A are drawn on to the tapered ends E of a ferrule B by screwing together the internally tapered sleeves F, the ferrule is provided with a central collar D and annular shoulders B<1> so as to form housings C' for rubber packing rings C against which the ends of the pipes are drawn when the sleeves F are screwed together, the shoulders B<1> at the sarne time cutting seatings in the pipes.
Patent GB-938739-A (GB)
Title: Improvements in systems comprising a cluster of rockets carried by a launching machine
IPC: B64D1/06
Filed: 1961-02-21
Abstract: 938,739. Launching rockets from aircraft. BREVETS AERO-MECANIQUES S.A. Feb. 21, 1961 [March 7, 1960], No. 6281/61. Classes 9 (1) and 9 (2). A cluster of rockets 2 is suspended as in Specification 846,246, each rocket having an electric ignition device comprising a transformer, whose primary and secondary windings are shown at 12, 14, respectively, a primer 15, a switch 9 and a flap 5 rotatable from a rearwardly retracted position to a downward vertical position. In the vertical position the flaps 5 serve as rocket supports and operate switches 9 to form a continuous supply line from a source 6 via switch 7 to the lowest rocket (the first to be launched). The flap of a supporting rocket is caused to retract by the propelling gases of a supported rocket when launched and in the retracted position the supply line is connected via contact 10 to the ignition device. Hence when switch 7 is closed a current flows through the supply line to the lowest rocket, whose flap is retracted, and thence through the primary winding 12 and conductor 13 to the rocket casing, which together with the other rocket casings and the metallic body of the aircraft, are in electrical contact to serve as an earth. According to the invention, there is at this stage insufficient potential difference existing between the transformer windings to ignite the primer, but on breaking the circuit by opening switch 7 a sufficiently high potential is induced in the secondary winding to ignite the primer. The system, therefore, is such that the ignition device of the lowest rocket only is in circuit and two distinct operations of switch 7 are required to fire it, thereby avoiding the possibility of launching more than one rocket at a time. A second embodiment employs the same double action for firing, but the ignition device comprises a condenser and associated rectifiers instead of a transformer. When a rocket is not connected to another rocket the switch 9 automatically short-circuits the primer 15 (see Fig. 3). Specification 738,870 also is referred to.
Patent GB-549291-A (GB)
Title: Improved process for the manufacture of carbon paper
IPC: B41M5/10
Filed: 1942-05-11
Abstract: 549,291. Coating webs. CARFA SOC. ANON. FABRIQUE DE MATERIEL TECHNIQUE ET CHEMIQUE DE BUREAU AND DREYFUS, P. A. May 11, 1942, No. 6361. [Class 140] [Also in Group XVI] A carbon paper has on its rear face a non- curl coating of wax applied in streaks consisting of parallel zig-zag lines, such as the inclined lines 1 joined by the bends 2. The streaks are produced by the reciprocation of the scraping tool which may be toothed by a close winding of wire, e.g. piano wire.
Patent GB-828098-A (GB)
Title: An improved soil cultivating machine
IPC: A01B33/02
Filed: 1957-02-26
Abstract: 828,098. Agricultural implements. NORMAN, R. G. May 23, 1958 [Feb. 26, 1957], No. 6362/57. Class 6(1). A cultivating machine comprises digging blades 14a mounted on arms 13 the digging assembly being situated between disc coulters 16 each mounted co-axial with a supporting wheel 11. As shown the wheels 11 are ribbed and are mounted on the inner surface of the disc coulters 16, The disc coulters 16 are mounted oblique to the vertical so as to be nearer together below their axes of rotation than above. A fixed baffle or scraping means may be provided to remove earth from the blades. The wheels 11 and the digging means are driven by a motor 10 arranged to balance the weight of the machine when it is working.
Patent GB-643803-A (GB)
Title: Trap for catching small creatures
IPC: A01M23/24
Filed: 1948-02-29
Abstract: 643,803. Animal traps. TYLER, J. D. Feb. 29, 1948, No. 6373. Convention date, Aug. 21,1946. [Class 5(i)] An animal trap comprises a single stamped body member 10 having bent-over portions 11 and overlapping side lugs 12 together forming a cage into which the animal must insert its head to reach the bait. The two end parts of the bent portions 11 are further bent over to form a pair of overlapping jaws 14 and 15 which have apertures 16 and 17, aligned when the trap is set. A latch member 24 is pivoted at 28 to hang in the entrance, and by engaging the edges of the apertures 16 and 17, holds the trap set. The insertion of the animal's head releases the latch and causes the apertured parts to spring apart, strangling the creature. The side lugs 12 are of sufficient length to limit the movement of the two bent portions 11 towards one another when setting.
Patent GB-1182748-A (GB)
Title: Improvements in or relating to X-Ray Intensifying Screens
IPC: G21K4/00
Filed: 1968-02-08
Abstract: 1,182,748. Luminescent screens. AUERGESELLSCHAFT G.m.b.H. 8 Feb., 1968 [21 Feb., 1967], No. 6416/68. Heading C4S. An X-ray intensifying screen 2 consists of a luminescent material 3, a binder and a dyestuff 4 colloidally distributed in the binder. The dyestuff consists of black particles ranging in size between 10<SP>-5</SP> to 10<SP>-7</SP> cm.
Patent GB-372859-A (GB)
Title: Process for the preparation of homologues and derivatives of phenanthridine
IPC: C07D221/12
Filed: 1931-03-02
Abstract: Homologues and derivatives of phenanthridine are obtained by condensing N-acyl derivatives of o-xenylamine or its substitution products with one free heteronuclear o-position, with the use of pentavalent phosphorus compounds.  According to examples, 9-methyl-, 9-ethyl-, 9-o -chloromethyl-, 9-phenyl-, 9-o-nitrophenyl-, 9-p-nitrophenyl- and 9-m-nitrophenyl-, phenanthridines are obtained by treating the corresponding N-acetyl-, propionyl-, chloracetyl-, benzoyl- and nitro-benzoyl-o-xenylamines with phosphorus oxychloride, phosphoric oxide, or a mixture of phosphorus pentachloride and oxychloride.  3-Nitro-9-methyl and 7-nitro-9-methylphenanthridine are obtained by treating the corresponding nitro-acetyl-xenylamine with phosphorus oxychloride.  The nitro-phenanthridines obtained as above may be reduced to the corresponding amino-derivatives by customary methods, and acetylated, and converted into quaternary methosulphates. Diazotization and conversion to a red azo-b  naphthol compound is described in the case of the 9-p-aminophenyl phenanthridine. 9-o -Iodomethyl phenanthridine is obtained by treating the o -chloro-compound referred to above, with sodium iodide.  The chloro compound also reacts with ammonia, p-toluene sulphonamide and piperidine.  Thiohalides and halides of phosphorus are also specified as condensing agents.  Acylxenylamines are obtained by treating the corresponding o-xenylamines with acyl chlorides: the chloracetyl and the nitro-benzoyl derivatives are prepared in this way.
Patent GB-160459-A (GB)
Title: Electrolytic device for increasing the speed of ships
IPC: B63H1/28
Filed: 1921-02-25
Abstract: 160,459. Duteil, E. March 16, 1920, [Convention date]. Drawings to Specification. Resistance to propulsion, reducing.-For reducing the power necessary for propelling a ship, the water in which the ship is moving is submitted to electrolytic action. At the stern, a ring encloses the propeller and both are connected to the terminals of an electric plant. At the bow, an electrode is placed beneath the water line and insulated from the plating. It and the plating are connected up to the terminals. The electrode may have porous walls to prevent immediate re-combination of the ions, and where extended aft toward midships the electrode is made in sections.
Patent GB-1380102-A (GB)
Title: Photosensitive sheet developing device
IPC: G03D13/00
Filed: 1972-02-11
Abstract: 1380102 Developing apparatus RICOH KK 11 Feb 1972 [13 Feb 1971] 6454/72 Heading G2A A device for developing exposed diazo type photo-sensitive sheets with a developer comprising particles 1 of ferromagnetic material moist with an alkaline developing liquid includes a developer vessel 2, a cylindrical member 3 and magnetic means 6 for producing a magnetic brush 7 of the developer on the outer surface of the member 3 such that a sheet fed along the guide-plate 8 is contacted with a moving brush of developer the cylindrical member and the magnetic means being arranged to be driven at different relative rotational speeds. The photo-sensitive sheet is fed in between rollers 9, passes through the developing zone, is stripped from the cylindrical member 3 by stripper blades 15a, and is cleaned of excess developer by passage between rollers 16 and 17 housing magnets 18 and 19. The magnets 6 are rotated on a shaft 4. Scrapers 20 and 21 are positioned to clean the rollers 16 and 17.
Patent GB-932889-A (GB)
Title: Improvements in or relating to electrical coding apparatus
Inventor: BRAITHWAITE HUGH BEATY
IPC: H03M1/00
Filed: 1961-02-22
Abstract: 932,889. Electric selective signalling systems. GENERAL ELECTRIC CO. Ltd. Feb. 8, 1962 [Feb. 22, 1961], No. 6514/61. Class 40 (1). [Also in Group XIX] In a multiplying circuit in which two input numbers are represented by the amplitudes of two D.C. signals 1, 2, Fig. 1, the first signal is converted into a pulse train 11 having a frequency proportional to the first number and the second signal is converted into a signal 13 having a duration proportional to the second number, and this duration significant signal is then arranged to gate 12 the frequency significant signal whereby pulses are produced which represent, by their number, the product of the first and second input numbers. The first conversion, from amplitude to frequency, is effected by a variable frequency oscillator (Fig. 2, not shown), using transistors and a saturable reactor, and the second conversion, from amplitude to duration, is effected by comparing 4 the amplitude with a linearly increasing reference signal and by turning off a trigger 6 when equality is attained.
Patent GB-1026632-A (GB)
Title: Improvements relating to the preparation of catalysts
IPC: B01J37/22
Filed: 1962-02-20
Abstract: Hydrogen-containing Al2O3 (or any other oxide of a Group II to IV element) is contacted with a decomposable fluorine compound and simultaneously or subsequently heated to 400-550 DEG  C. for 10 mins. to 24 hrs. such that the product contains 0.1 to 15% fluorine and less than 1% hydrogen.  In practice the Al2O3 is treated with HF or CF4.ALSO:In a process of making hydrocarbon conversion catalysts comprising 0. 1-15% fluorine, one or more hydrogen-containing halogenatable refractory oxides of a Group II-IV element(s) is contacted with a decomposable fluorine-containing compound and the oxide(s) is simultaneously or subsequently heated at 400 to 550 DEG C. for 10 mins. to 24 hrs. to reduce the hydrogen content to less than 1% by weight, those catalysts having a hydrogen content less than 0.25% having cracking activity and those catalyst of hydrogen content from 0.25% up to but less than 1% having isomerisation activity.  The catalyst may additionally contain a Group VIa or VIII metal e.g. Co, Mo, Pt or Pd.  The refractory oxide is preferably Al2O3.  Treatment at 400-550 DEG C. is preferably effected under non-reducing conditions.
Patent GB-123230-A (GB)
Title: Improvements in or relating to Filling Machines for Pies and the like.
Inventor: WILKINSON GEORGE
IPC: A21C15/00
Filed: 1918-04-18
Abstract: 123,230. Wilkinson, G. April 18, 1918. Lever - actuated p u m p s ; valveless pumps.-A machine for filling meat pies and the like with gravy or fruit or like juices consists of upright standards 3 having fixed frames 4, 5, a fixed frame 2 carrying a tank 1 to hold the liquid, and two frames 13, 22 vertically movable on the standard by means of toggle mechanism 14, 15, 16 and 23, 24, 25 operated respectively by handles 17, 26. The handles are fixed on shafts 18, 27 having at their other ends cranks 20, 28 which operate two other similar sets of toggles and links connected to the other sides of the frames 13, 22. The frame 22 may be maintained at any desired height by means of the spring catch 30 and curved rack 31, while a pin 32 can be placed in one of the holes of the latter to limit the height to which the frame can be raised. The frame 13 carries bars 12 from which depend a series of pistons 10 which work in tubes 6 mounted on the base of the tank 1. Fine nozzles 7 are screwed to the bottom of the tank. In use, the pies are positioned beneath the nozzles on the table 33, which is carried by the frame 22, and the latter is raised to the position shown in Fig. 5, whereby the nozzles pierce the pies or enter holes previously made therein. The frame 13 is next raised so as to lift the pistons, whereby gravy &c. flows from the tank through openings 9 into the tubes beneath the pistons. The frame 13 is then depressed, and the gravy &c. is forced by the pistons into the pies.
Patent GB-1459504-A (GB)
Title: Window guide channel
IPC: B60J10/04
Filed: 1974-02-13
Abstract: 1459504 Glass-run REGIE NATIONALE DES USINES RENAULT and AUTOMOBILES PEUGEOT 13 Feb 1974 [6 March 1973] 6605/74 Heading E1J The bottom and sides of a glass-run are each formed by one of three parallel tubes of a flexible material interconnected by flexible webs 14, 14a having grooves about which the side tubes are folded to form the sides of the glass-run. The glass-run may be mounted in a metal channel 3. One wall of each of the side tubes may have a fold therein, Fig. 6 (not shown).
Patent GB-290653-A (GB)
Title: Improvements in or relating to apparatus for indicating electrically the position of adjustable units
IPC: H04Q9/04
Filed: 1928-03-02
Abstract: 290,653. Siemens & Halske Akt.- Ges. May 20, 1927, [Convention date]. Addition to 280,562. Selective distant control systems; tell-tale apparatus.-Relates to distant control systems of the kind described in the parent Specification wherein the position of a switch or other unit at a substation is indicated by a hand-operated indicator which, when its position is not in agreement with the corresponding substation unit causes the operation of an alarm. According to the invention, provision is made whereby, in the event of an indicator being inadvertently operated into a wrong position, an alarm signal is immediately given. As shown in Fig. 1, signalling contacts 3 of apparatus units 1 at a substation N are connected through corresponding contacts of distributors 8, 9, to polarized relays 14 by the rotary arms 10, 11. The contact 18 of each relay is connected through an electromagnet 25 to a two-way switch 21, which forms the position indicator. When a unit at the substation changes its position the corresponding polarized relay 14 is operated over line wires 15, 16 and a local circuit from the battery 24 is closed for the electromagnet 25 over the relay 14 and indicator switch 21. The magnet 25 opens the circuit of a. constantly illuminated lamp 31 and connects. the lamp in circuit 'with an interrupter 33, 34 at the contacts 28, 29. The flashing signal indicates that the corresponding unit has changed position. The magnet 25 also operates an alarm 35 at contacts 30, and at contacts 27 opens the control circuit (not fully shown) of the apparatus unit. Upon reception of the alarm, the operator reverses the switch 21 corresponding to the flashing signal 31, whereupon the position of the switch indicates the new position of the unit and the electromagnet 25 is de-energized to restore the normal illumination of the lamp 31 and the control circuit and open the alarm circuit. Fig. 2 shows a modification wherein the indicator is connected mechanically to the polarized relay instead of electrically. The rocking lever 38 of the relay is connected to an indicator disc 41 having a handle 42 by a pivoted link 43 carrying a contact 44. When the relay is operated the contact 44 is moved into engagement with a fixed contact 45 to close the circuit of the electromagnet 25 and thereby operate the alarm. The alarm is nullified by operating the disc in the direction of tha arrow. The handle 42 indicates the position of the associated apparatus unit.