baber/WOPTO huggingface dataset:
Patent GB-555588-A (GB)
Title: Improvements in or relating to the removal of acetylene from gaseous mixtures
IPC: C07C7/148
Filed: 1942-02-27
Abstract: 555,588. Purifying hydrocarbons. DISTILLERS CO., Ltd., WOOD, W. L., and BOWEN, B. E. V. Feb. 27, 1942, No. 2632. [Class 2 (iii) Acetylene, together with any hydrogen present is removed by selective oxidation from hydrocarbon mixtures by passing the mixture over copper oxide at 275-450‹C. An example is given of the removal of acetylene from admixture with methane, ethylene, -ethane and hydrogen. Specifications 288,216, [Class 2 (iii)], and 359,421 are referred to.
Patent GB-555762-A (GB)
Title: Improvements in or relating to water heaters
IPC: F24H9/00
Filed: 1942-03-03
Abstract: 555,762. Hot-water boilers. MANTLE LAMP CO. March 3, 1942, No. 2803. Convention date, March 3, 1941. [Class 64 (i)] A pipe 12 extending through a boiler flue 11 and connected to the top and bottom of the boiler is provided with a number of laterally extending inclined baffles 31a, which may be formed from sheet metal discs slit radially and bent to similar inclinations between the slits. The pipe is detachably connected to inlet and outlet unions 14, 15 on the boiler. The boiler may be supported by legs engaging a ring 32 at the bottom of the packing 2 between the boiler shell 17 and an outer shell 16.
Patent GB-848046-A (GB)
Title: Improvements in or relating to food cutters
IPC: B26D1/25
Filed: 1959-01-26
Abstract: 848,046. Slicing-machines. POPEIL, S. J. Jan. 26, 1959 [Nov. 19, 1958], No. 2810/59. Class 5(1). A hand pusher 19 slides potatoes along a table 12 and against an interchangeable cutter blade 14 to produce corrugated or waffle like slices, shreddings or shoe-strings the thickness of the product being varied as wanted by tilting the table 23 in relation to the cutter 14 to vary the clearance gap. Rotation of a dial 15 rotates a crank rod 41, Fig. 6, whereby a cross-bar 32 is raised and lowered in slots 56 in the table to raise or lower the back end of the table, and also gives the table a small forward movement whereby its forward inclined slot 31, Fig. 7, rides on a fixed cross-bar 34 to raise or lower the front end of the table to or from the edge of the cutter. The blade 14 is held in place by a pair of J-shaped springs 66, Fig. 9, the upper leg 70 yieldingly pressing the blade 14. The springs 66 are received in a pocket 69 with rib 71 moulded in the body. A stop prevents the spring 66 from dropping out. To remove a blade the user pushes the rear edge of the the blade forward and up and lifts 66 out. A corrugated blade is stiffened by fingers 98, Fig. 18. To cut perforated waved slices the potato is hand turned through 90 degrees after each cut.
Patent GB-373999-A (GB)
Title: Process of preparing hydroxyanthraquinones
IPC: C09B1/04
Filed: 1931-01-28
Abstract: 373,999. Anthraquinone derivatives. GUBELMANN, I., 1202, Fairview Avenue, and WEILAND, H. J., 1251, Fairview Avenue, South Milwaukee, Wisconsin, U.S.A. Jan. 28, 1931, No. 2828. [Class 2 (iii).] Quinizarin and its derivatives are obtained by diazotizing p-chloraniline unsubstituted or substituted by halogen in the m-position to the amino-group and condensing with phthalic anhydride unsubstituted or substituted in the ring by one or more monovalent groups such as halogen or alkyl, and hydrolysing. According to examples, p-chloroaniline is diazotized and condensed with phthalic anhydride to give quinizarin, and 3 : 4 dichloraniline is diazotized and condensed with phthalic anhydride to give 3-chloroquinizarin. Mono-, di-, and tetrachlorphthalic anhydrides are also specified. Specification 260,544, [Class 2 (iii), Dyes &c.], is referred to.
Patent GB-150616-A (GB)
Title: Improvements in driving belts
IPC: F16G5/06
Filed: 1920-01-30
Abstract: 150,616. Walton, J. Jan. 30, 1920. Belts.-A V-shaped driving-belt is composed of outer and inner layers a, b, Fig. 2, of leather and a central layer c of rubber provided with one or more embedded layers d of proofed canvas, the whole secured together by cement and by rows of waxed thread or other flexible stitches; in a modification, Fig. 3, the central layer is replaced by alternate layers e of leather and c of rubber with embedded proofed canvas.
Patent GB-1453133-A (GB)
Title: Method of and apparatus for duplicating photographic images
IPC: G03G21/00
Filed: 1974-01-22
Abstract: 1453133 Copying film electro-photographically COULTER INFORMATION SYSTEMS Inc 22 Jan 1974 [14 Sept 1973] 02895/74 Heading G2H Photographic images on film 10 are copied on to electro-photographic film 12, where they are developed and fixed, by opticalslit projector 38, and the initial charge applied to film 12 by charging device 42 before exposure is controlled by the background density of the film 10, as measured by photo-cell 26. Preferably the film 12 comprises a plastics film substrate, an electrically conductive layer and a sputtered coating of cadmium sulphide, and the electrostatic latent images formed are developed with liquid developer.
Patent GB-747042-A (GB)
Title: Method and apparatus for carrying out thermal decompositions
IPC: C07C4/04
Filed: 1954-02-01
Abstract: Products relatively rich in ethylene are obtained by rapidly heating a lower alkyl hydrocarbon in the gaseous phase to a temperature at which it will undergo homogeneous decomposition by contacting it with a hot surface under conditions of extreme turbulence, immediately removing the heated hydrocarbon from contact with said surface, and maintaining the heated hydrocarbon at said temperature and under substantially laminar flow conditions and substantially out of contact with any solid surface until said homogeneous decomposition has proceeded to a desired degree.  The process is preferably carried out in an apparatus A consisting of an alloy steel cylinder 10, closed at its top end 11 and at its bottom 12.  Feed tube 13 terminates in a jet nozzle 14 which opens into a chamber in which the gas is in a state of turbulence before it passes down the narrow annular reaction chamber 17, into the annular chamber 18 and out through the tube 19.  Reactor A extends upwardly into an electric furnace 27, preferably the extent of the protrusion may be adjusted. In examples, either N-butane or N-pentane mixed with nitrogen was fed to a reactor of the preferred type, at a speed of 600 c.c. per minute and at a temperature of about 775 DEG  C.ALSO:<PICT:0747042/III/1> An apparatus for thermally decomposing alkyl hydrocarbons in the gaseous phase comprises a jet nozzle means 14 for projecting a rapidly moving stream of gaseous hydrocarbon, means 13 for supplying the gas stream to the nozzle, a target 11 presenting a surface spaced apart from and normal to the axis of the jet wall means 10 in association with the target, forming a cylindrical heating chamber for the gas, the chamber having a diameter which is approximately twice the length thereof, means 17 defining an annular chamber extending from the periphery of the heating chamber, a distance which is several times the length of the heating chamber, means 19 for removing gaseous reaction products from the end of the annular chamber remote from the heating chamber and means 27 preferably in the form of an electric furnace for controllably supplying heat to the chambers.  The relative proportions of the heating chamber and the annular chamber being such that the flow of gas through the heating chamber will be turbulent and that through the annular chamber will be laminar. The apparatus may be made of alloy steel, fused silica or glass.
Patent GB-825549-A (GB)
Title: Improvements in or relating to linear copolyester films
IPC: B29C55/14
Filed: 1956-01-30
Abstract: A polyester film, having a reduced tendency to crystallize compared with polyethylene terephthalate, is made by first forming a film from a linear copolyester derived from ethylene glycol, 95-65 mol. per cent of terephthalic acid and correspondingly 5-35 mol. per cent of isophthalic acid, then orienting the film and finally subjecting it to a heat treatment at such a temperature and for such a time as would, in the absence of a restraining tension, bring about shrinkage of the film. Either the film is allowed to shrink during the heat treatment, e.g. round the neck of a bottle or a foodstuff to be packaged, or it is held against shrinkage to produce a heat-set film useful in the manufacture of bags or dielectric materials.  Orienting of the film is effected by stretching and/or rolling the extruded film in either or both the longitudinal and transverse directions. In an example film made by extrusion on to a rotating quench drum maintained at 80-90 DEG  C. is continuously stretched 3X in the machine direction over differential rolls maintained at 80-90 DEG  C. and then stretched 3X in the transverse direction in a tentering apparatus while maintaining the atmosphere round the film at 95-105 DEG  C.  The heat treatment may be effected at 104-105 DEG  C. or in a hot water bath.  The preparation of the copolyesters is claimed in Specification 825,550.  Specifications 578,079, [Group IV], and 766,290 also are referred to.
Patent GB-757074-A (GB)
Title: Improvements in or relating to ferrules, ferrule cocks and like devices for effecting the attachment of service pipes to water or gas mains
IPC: F16L41/10
Filed: 1953-02-03
Abstract: 757,074. Pipe joints. ELLIOT, N. G. Jan. 20, 1954 [Feb. 3, 1953], No. 3056/53. Class 99(1). [Also in Group XXIX] A ferrule for attaching a service pipe to a water or gas main under pressure comprises two screwthreaded tubular members which are adapted for connection respectively to the main and service pipes and which are engageable with one another to form a joint with a passage therethrough and a removable stop member for closing the passage when required one of the tubular members being of cup-like formation and the stop member being insertable transversely in the ferrule between the base of the cup-shaped tubular member and the end of the other tubular member whereby when the two members are screwed together the end of the other member is adapted to clamp the stop member in position or to engage with the base of the cup-shaped member when the stop member is removed from the ferrule. As shown a ferrule 1 comprises a threaded portion 4 and is attached to a main 3 by screwing therein. A second fitting 8 is screwed into the ferrule 1 and co-operates with a detachable closure member 17. Thus on tightening up the fitting 8 the closure member may be fixed in position. With an asbestos cement main a saddle 2 is placed over a packing ring on the wall of the main and a hole drilled and tapped in the main and the ferrule passed through a hole in the saddle and screwed down into the main. Where an iron main is used the saddle may be omitted and the ferrule connected to the main by a fine tapered thread.
Patent GB-143286-A (GB)
Title: Improvements in and relating to the construction of boats, ships and the like
IPC: B63B1/04
Filed: 1919-02-07
Abstract: 143,286. Davis, R. W. Feb. 7, 1919. Hulls.-The hulls of ships are constructed with converging sides 6 and a flat bottom 1, which flat bottom is extended beyond the sides at the bow and stern, such extensions 14 being connected to the sides by curved plates 13. It is stated that this construction increases the stability of the vessel. The chords of the curved sections of the plates 13 are at a greater angle to the vertical at the central portions of the extensions than at the ends.
Patent GB-563776-A (GB)
Title: Method of fabricating vacuum tube
IPC: H01J5/20
Filed: 1943-02-26
Abstract: 563,776. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd. Feb. 26, 1943, No. 3167. Convention date, May 12, 1942. [Class 39 (i)] In order to positior the electrodes in accurate fashion relatively to one another, in the fabrication of thermionic valves, an an. nular grid supporting plate 15, Fig. 1, is centred in relation to a tubular glass member 10, forming part of the envelope, by means of a block 14 with a stop flange 21, and is sealed between the end 12 of the tubular member and a glass plate 17. The block 14 is hollow and functions to centre and position the cathode 19, carried by the plate 17, relatively to the grid support. The anode 22, Fig. 2, is carried by a metal plate 23 and is similarly centred and sealed in a second. tubular glass member 10a forming the complementary part of the envelope, the two parts of which are assembled with their open ends abutting and the edges of laterally extending flanges 11, 11a sealed together. Evacuation of the space enclosed by these flanges is facilitated by the notches 13, 13a in the abutting edges of the parts 10, 10a.
Patent GB-1283024-A (GB)
Title: Electro-depositing silver alloys
Inventor: LEWIS LESLIE VIVIAN
IPC: C25D3/64
Filed: 1970-01-22
Abstract: 1283024 Electro-forming, electro-plating silver alloy BJS ELECTRO-PLATING CO Ltd 8 Feb 1971 [22 Jan 1970] 3206/70 Headings C7A and C7B An alloy of Ag with Se or Te is electrodeposited, either to electro-form an article or part e.g. on metallized plastic or as an electroplate on a metal (e.g. Cu) substrate, from an electrolyte into which Ag and from 0À1 to 5% Se or Te by weight of the Ag are anodically dissolved, e.g. from a single consumable Ag-Se or Te alloy or two anodes: a main Ag anode and an auxilliary anode wholly or partly of Se or Te. Preferably an alkaline cyanide electrolyte is used, e.g. containing AgCN, KCN, K 2 CO 3 , KNO 3  with EDTA or ethylene diamine for complexing Ag; a thiosulphate or other S compound may be also present. The Ag alloy article or part may be precipitation-hardened at 200-400‹C.
Patent GB-637082-A (GB)
Title: Electronic switching control of high tension especially as applied to x-ray generators
IPC: H03K17/288
Filed: 1946-02-01
Abstract: 637,082. Switching systems for high-tension consumption apparatus. QUITTNER, V., and GENERAL RADIOLOGICAL, Ltd. Feb. 1, 1946, No. 3305. [Class 38 (iv)] A switching arrangement for the high-tension circuit of an X-ray tube or the like by means of a low-tension control circuit comprises, in the high-tension circuit, a grid-controlled main switching hard valve controlled by a gasfilled discharge tube which is coupled to the low-tension control circuit by an inductive or capacitive link whereby an impulse from this circuit may be injected into the circuit of the discharge tube to start or stop a discharge. The main switching valve may be the X-ray tube itself when this is of the grid-controlled type. As shown in Fig. 1, a main switching valve 1, normally biassed to " cut-off " by a voltage 3 applied over resistors 2, 4, is rendered conducting by closing a switch 9 in the lowtension circuit 8, 9, 11 to inject (by means of a transformer 7, 8) into the circuit of a gas-filled diode 6 a voltage which, when added to that of a steady voltage source 5, is sufficient to fire the diode. The diode current produces across resistor 4 a voltage nullifying the bias 3 on the switching valve. Opening of switch 9 momentarily reduces the voltage in the diode circuit to below extinction value; the diode ceases to conduct and cut-off bias returns to the switch valve. The diode may be replaced by a gas-filled triode. In the case of a switch valve requiring a high value of bias for " cutoff " and which passes considerable grid current when conducting, the resistor 2 may be omitted or reduced in value. and the bias source placed in series with the resistor 4 in the anode circuit of the gas-filled valve, the bias source replacing wholly, or in part, the source 5. Fig. 5 shows an arrangement in which normally non-conducting gas triodes 18, 18a are triggered, respectively, to bring about conduction and cut-off of the switch valve 1 by switches 9, 9a in a lowtension control circuit which is isolated from the triodes by condensers 21-23. Triode 18 controls the valve 1 in a manner similar to the diode of Fig. 1, whilst triode 18a, when fired, short circuits resistor 4 and thus removes the counter-biassing of valve 1 produced by the passage through 4 of the anode current of triode 18. In a similar arrangement, Fig. 6, energization of the high-tension circuit for a predetermined and adjustable period is effected by a change-over switch 9 and an electronic timing circuit. With the switch in the position shown, a timing valve 27 is biassed " off " by battery 28 and potentiometer 32 associated with condenser 31. Movement of the switch into the other position causes battery 11 to trigger triode 18 and close the switching valve 1. Condenser 31 now discharges through potentiometer 32 and valve 27 eventually conducts to trigger triode 18a which opens the switch valve. Instead of a timing valve a dose-meter may be used to open the switch valve.
Patent GB-739406-A (GB)
Title: Improvements in or relating to electromagnetic apparatus
IPC: H02K33/12
Filed: 1954-02-04
Abstract: 739,406. Magnetic game apparatus. CASAMADA, F. R., ARNAIZ, A. M.. and LLORENS F. R. Feb. 4, 1954 [April 14, 1953], No. 3310/54. Class 132(2). [Also in Group XXXV] An electromagnetic apparatus used to throw a movable member e.g. a ball over a flat surface comprises two concentric electromagnets operable at will and motmted beneath the said surface, one of the electromagnets serves to centre and to hold momentarily the ball, while the other electromagnet serves to throw the ball in a given direction, means being provided to vary this direction. Fig. 1 shows an inner electromagnet having a central core 1 and another electromagnet having an annular core 8. A piece of iron 10 is arranged to rotate about the central core 1 when actuated by a bar 12. The electromagnetic apparatus is mounted beneath a cover plate 6 over which a ball 7 wholly or partially made of magnetic material is free to roll according to the excitation of the electromagnets and to the position of the movable iron piece 10. When the winding 9 of the outer electromagnet is energised the ball 7 will be drawn towards the annular core 8, then as the current of this winding is switched off the ball will be drawn towards the central core 1 of the inner electromagnet. If the winding 9 is now energised the ball will move along a traverse 17 in a direction selected by the positioning of the iron piece 10. While the winding 4 of the inner electromagnet is permanently connected to the mains, the winding 9 is connected to the same mains via a push-button switch. When several throwing units are employed their throwing electromagnets can be arranged to operate singly by switches as in Fig. 3 (not shown) and resistances may be used to prevent the operation of more than one of the throwing electromagnets.
Patent GB-1392902-A (GB)
Title: Aminoesters of cardenolides
IPC: A61K31/58
Filed: 1973-01-23
Abstract: 1392902 Cardenolide aminoacid esters ISTITUTO BIOCHIMICO ITALIANO DI LOREDANA LORENZINI SAS and SIMES SpA 23 Jan 1973 [25 Jan 1972 4 May 1972] 3327/73 Heading C2U The invention comprises compounds of formula wherein R is H or hydrocarbyl; R<SP>1</SP> and R<SP>2</SP> are each H or carboxylic acyl, or R<SP>1</SP> and R<SP>2</SP> together represent phthaloyl, or N, R<SP>1</SP> and R<SP>2</SP> together represent a saturated heterocyclic ring optionally including a further hetero ring atom; and either R<SP>3</SP> is Me and R<SP>4</SP> is H, or R<SP>3</SP> is CHO and R<SP>4</SP> is OH. Compounds I are prepared from the corresponding 3-hydroxycardenolides by reaction with an appropriate aminoacid protected at the amino group and activated at the carboxy group, followed where appropriate by removal of the protecting group and optional acylation of a free amino group. Alternatively digitoxigenin 3-(morpholinoacetate) is prepared by reacting digitoxigenin 3-chloroacetate with morpholine. Compounds I may be purified via their hydrochloride salts. Cardiotonic compositions for oral and parenteral administration comprise a compound I and a carrier.
Patent GB-505696-A (GB)
Title: Improvements in means for effecting discharge of containers for fire extinguishing fluids
IPC: A62C99/00
Filed: 1938-02-03
Abstract: 505,696. Fire-extinguishers. GRAVINER MANUFACTURING CO., Ltd., SALMOND, H. M., MATHISEN, A., PALMER, G., and GOODALL, H. D. E. Feb. 3, 1938, No. 3363. [Class 47 (ii)] A fire-extinguisher 2 of the kind having its outlet 6 closed by a frangible pip 11 is mounted in a bracket 4 provided with a catch 20 adapted to engage a lever 13 on the pip when the extinguisher is withdrawn from the bracket. If the catch is turned out of the way, as shown in dotted lines, against the action of a spring 22, the extinguisher may be withdrawn without fracture of the pip. , The pip is integral with a plug member 7 fitted with a tapered jet 23 and a screen 25.
Patent GB-396444-A (GB)
Title: Improvements in or relating to transmission systems such as long distance telephone systems
IPC: H04B3/20
Filed: 1932-02-04
Abstract: 396,444. Two-way transmission. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.- (Assignees of Nebel, C. N.; 900, Lake Street, Newark, New Jersey, U.S.A.) Feb. 4, 1932, No. 3370. Convention date, Feb. 24, 1931. [Class 40 (iv).] In a two-way system having directional switching apparatus, noise incoming from a transmission line is reduced by a low-pass filter except when speech comes over the line, the filter being disabled, or a complementary highpass filter switched in, by speech currents. The invention is a variation, of the arrangement described in Specification 396,116 which uses an attenuator for this purpose. As shown, the system comprises two stations A, B connected by a long four-wire circuit, station B being situated at the terminal of a cable CL. A low-pass filter 46, say with cut-off at 2300 cycles, is inserted in the receiving path at either or both stations, and a high-pass filter 47, Fig. 1, is switched in by incoming speech currents, or the low-pass filter is disabled, (Figs. 2 and 3). The normally disabled transmitting path comprises, at station A, a volume control 10 such as is described in Specifications 367,616 or 390,812, a conditioning circuit comprising delay device 11, rectifier 60 and relays 22, 58, which prepare the transmitting path and disable the receiving path respectively. At station B, a further conditioning circuit 65, 30, 48 operates in a similar manner. Speech currents incoming from the cable pass to rectifier 61 which operates relay 18 to disable the conditioning circuit in the transmitting path, and relay 49 to extend the pass range as described above. At station A, rectifier 62 operates relay 63 to disable relay 58 or release it if the transmitting path happened to be taken into use at station A in the meantime. Rectifier 61 operates relays 20, 23 to disable the transmitting path and its conditioning circuit, and operates relay 49 to extend the pass range of the receiving path. In the modified filter shown in Fig. 3, an anti-resonant loop 80 in series with resistances 81 impeding currents of frequencies in the neighbourhood of 3000 cycles and a shunt circuit 82 resonant at the same frequencies are disabled by relay 49. Either the series or the shunt circuit may be used alone. Specifications 379,707 and 391,827 also are referred to.
Patent GB-576285-A (GB)
Title: Improvements in neckties
IPC: A41D25/06
Filed: 1944-02-23
Abstract: 576,285. Neckties. KAPLAN, J. J. Feb. 23, 1944, No. 3377. [Class 141] In order to assist the wearer to knot a necktie of the four-in-hand type so that the free ends, after knotting, will be of the same length, an indicating element, such as a tape P, coloured thread or button, is applied to the rear surface of the wider end at a distance D from its tip T which is substantially equal to the total length of the wider end K which is used in forming the knot. This length may be determined empirically for any batch of ties, or may be calculated from the formula D=7# w + 4¢ t, where w represents the width and t the thickness of the tie material at the point on the narrower end N of the necktie at which the knot is formed.