baber/WOPTO huggingface dataset:
Patent GB-675097-A (GB)
Title: Improvements in or relating to gas-filled electric discharge devices
IPC: H01J61/28
Filed: 1949-03-10
Abstract: 675,097. Electron discharge apparatus. GENERAL ELECTRIC CO., Ltd., BELL, J., ahd WRIGHT, D. A. March 8, 1950 [March 10, 1949; Feb. 14, 1950], Nos. 6642/49 and 3804/50. Drawings to Specification. Class 39 (i). An electric discharge device, other than a thermionic valve, provided with a gaseous filling at least partly of hydrogen comprises at least a cathode and anode and includes a sealed container which is permeable to hydrogen only over a predetermined range of temperatures, the container being mounted within the envelope so that its temperature is determined by that of the anode and is normally below said range of temperatures; the container is preferably evacuated and includes a hydrogen compound which is decomposable on heating with consequent evolution of hydrogen over at least the lower part of said range of temperatures. The container may be at least partly of nickel, copper, iron, or palladium, and the compound may be the hydride of zirconium, titanium, tantalum, vanadium, or thorium. The discharge device may be a lamp, and the container, which is preferably tubular, may be in good thermal contact with the anode which may form part of the container; alternatively the container may be mounted so that it is not in contact with the anode but is heated by thermal radiation from the anode. With these arrangements, if the pressure of the filling falls owing to " clean up " the temperature of the device rises from its normal operating temperature of say 250‹ C. to say 350‹ C., thus heating the container; the heat renders the container permeable to hydrogen and releases hydrogen from the hydride which restores the pressure of the filling. According to the first Provisional Specification if the anode is in the form of a disc another disc may be secured to the periphery of the anode with a metallic hydride contained in the space between the two discs, provision being made for a small pumping tube at one part of the periphery.
Patent GB-385792-A (GB)
Title: Improvement connected with coin-freed apparatus
IPC: G07F15/08
Filed: 1932-03-07
Abstract: 385,792. Prepayment mechanism for meters. GLOVER & CO., Ltd., T. and KLEIN, J. F., Gothic Works, Angel Road, Edmonton, London. March 7, 1932, No. 6808. [Class 27.] Fraud, preventing.-In a combined price change plate, guard plate, and coin pocket for prepayment meters, a fraud preventing plate 5 is pivoted at 12 to the outside of the price change plate 15, the plate 5 being provided as shown with a nose 6 having a straight edge 7, an arcuate slot 8 engaging a fixed headed guiding stud 18, and a central opening 9 through which passes the stem 13 of the actuating knob. The opening 9 is substantially circular and has a projection 11 and a recess 10. When the knob 13 is rotated, after insertion of a coin in the slot 17, in the direction of the arrow a nose-piece 14 on the stem 13 leaves the recess 10 and rocks the plate 5 so that its nose 6 covers the coin slot. On the reverse rotation of the knob 13, the piece 14 will enter the recess 10 and act against the projection 11 to uncover the slot 17.
Patent GB-300846-A (GB)
Title: Improvements in means for counting the strokes of reciprocating engines and pumps, and other machines
IPC: G06M1/04
Filed: 1928-03-05
Abstract: 300,846. Saunders, P. K. March 5, 1928. Counters actuated by pneumatic means.- In apparatus for counting pneumatically the strokes of engines or machines by means of a piston or diaphragm subject to fluctuating pressures set up by the engine, the return stroke of the piston is effected by a. cushion of fluid allowed to form behind it. In the form shown in Fig. 1 a casting 9 contains a cylindrical chamber to which the engine pulsations are communicated at 22. A piston 13 is a loose fit in the chamber or has a hole 24 to allow the fluid to pass to an elongated chamber 25 for setting up the return pressure. The piston rod 14 is guided by means of a lug 20 received in a slot 21 and carries an actuating pawl 15 for the counter 10 viewed through a window 7. A removable washer 23 of determined thickness cushions the upward stroke of the piston. In a modification a diaphragm is employed in place of the piston.
Patent GB-593433-A (GB)
Title: Improvements in or relating to method of and apparatus for removing material, such as embedded electrically conducting material, from an electrically conducting structure
IPC: B25B27/18
Filed: 1945-03-19
Abstract: 593,433. Perforating by fusion. STEVENS, A. H. (Curtiss-Wright Corporation). March 19, 1945, No. 6874. [Class 83 (i.v)] Holes are formed in, or broken taps, drills or the like removed from metallic structures, by intermittently advancing and retracting the tip of an electrode into and out of engagement with the structure and passing current through the electrode and work to produce an intermittent electric arc functioning to burn away the material in the cavity. One application of the invention is the removal of broken taps from propeller blade hubs. The hub H, Fig. 1, comprises a tubular section b rising from a circular flanged surface c having a plurality of lugs d of equal height formed integral. The flange contains a number of equally-spaced holes e which are to be tapped. When a broken tap has to be removed, a ring 11, having an equal number of holes 14, Fig. 3, to correspond with holes e, is fitted to rest on lugs d and temporarily secured by two screws 15. An insulating bush 13, flanged at 13a, is fitted in that hole 14 which is directly above the hole e containing the broken tap t. The hollow electrode 3 has an enlarged end 3a tapped to receive a rod 2 ; to which is secured a tube 1. Attached to the tube is a clamp 6 which is connected to one side of the secondary winding of a transformer ; the other side being connected by a further clamp to the hub. The electrode is inserted into the bush to contact the end of the tap and is then reciprocated manually to make intermittent contact and produce a series of arcs. An air hose is attached to the upper end of tube 1 so that air can be fed through the electrodes to cool and/or blow-out burnt tap fragments. The secondary of the transformer has tappings to allow various voltages to be used.
Patent GB-711147-A (GB)
Title: Improvements relating to control systems for dynamo electric machines
Inventor: WILSON GRAHAM RUDGE
IPC: B65H23/198
Filed: 1951-03-22
Abstract: 711,147. Control of D.C. motors. ENGLISH ELECTRIC CO., Ltd. March 21, 1952 [March 22, 1951], No. 6890/51. Class 38(3) [Also in Group XXXV] In an automatic D.C. motor driven winder control of the constant armature current type, the motor field regulator also varies a biasing resistor so as to bias the regulator in a sense to tend to increase the armature current inversely with coil diameter. The reel motor armature 1a is energized from variable voltage bus bars 3, 3, via a current measuring resistor 2 across which is connected one control winding 5c3 of an automatic rolling sector type current regulator. The regulator also has a reference winding 5c4 opposing the winding 5c3, the resultant field operating a moving coil 5m which varies the resistor 5r1 in series with the motor field. A bias winding 5c1, opposing the control winding 5c3 is energized over resistors 5r3, 5r4, from the bars 4, 4, and from a generator 8 the output of which is proportional to the speed of the rolling mill feeding the coiler. At small reel diameters when the coiler motor is running fast, resistors 5r3, 5r4 provide the maximum excitation of winding 5c2 to compensate for drive losses. As the resistor 5r1 increases the motor field current and the speed falls so the resistors 5r3, 5r4 reduce the bias. The remaining resistance Sr2 controls the field of a flywheel inertia motor 9 connected-in series with the winding 5c1 across the bus bars 3, 3, so as to bias the regulator in accordance with rate of change of strip speed, the resistor 5r2 reducing this bias as the coiler speed is reduced. The resistor 5r2 could alternatively be connected across the coil 5c1 and the motor 9 run on a fixed shunt field. The field winding of the coiler motor may be supplied from an amplifying exciter controlled by resistor 5r1. In an alternative arrangement only one additional sector and resistance is provided on the regulator and this controls a motor driven rheostat the setting of which determines the amount of biasing.
Patent GB-102437-A (GB)
Title: Improvements in or relating to Heat-retaining and Cooking Vessels.
Inventor: MEYER-NEE-WOLF LIMA
IPC: A47J39/00
Filed: 1916-05-16
Abstract: 102,437. Meyer, (nÚe Wolf), L., and Schiff, R. May 16, 1916. Heat-retaining vessels. - In portable heat-retaining and cooking apparatus of the kind in which vessels 1 containing partly cooked food are placed in an insulated casing to complete the cooking, the inner vessel 1 is provided with a bail handle 7, Fig. 1, passing through a slot 14 in the cover of the outer casing, so that the whole apparatus is supported by the handle of the inner vessel. The casing has double walls 9<a>, 9<b> of stiff canvas or cardboard covered on the outside with waterproof fabric, with an intermediate filling of wood wool 10 or other insulating-material, and a loose cushion 20 filled with insulating-material is arranged between the inner vessel 1 and the cover of the casing, which is fastened by a strap and buckle. In a modification, Fig. 4, the bail handle 7<a> is attached to metal straps 22 embracing a series of superposed food vessels 1<b>, 1<a>. The lids of the food vessels are dished to accommodate a folding handle and, in the arrangement shown in Fig. 4, are secured by members 21a, 21b.
Patent GB-1210904-A (GB)
Title: Temperature control chamber
Inventor: FINK AARON J
IPC: C12M1/00
Filed: 1969-02-10
Abstract: 1,210,904. Incubators. A. J. FINK. 10 Feb., 1969 [22 March, 1968], No. 7036/69. Heading A1M. [Also in Divisions C6 and H5] An incubator 10, Figs. 1 and 2, has a sealable compartment 18 whereby bacteriological tests can simultaneously be carried out aerobically (in compartment 16) and anaerobically (in compartment 18). Thus an atmosphere of carbon dioxide can be produced by placing a lighted candle within the compartment 18 together with the sample under test and then securing the door 26 by means of the eccentric cam locks 28. A substantially uniform temperature is maintained within the housing by providing a continuous electrical heating element around the outside of the inner walls of the housing. A covering of fibrous glass insulation checks the dissipation of heat through the external housing walls. The temperature is controlled by a thermostat 40.
Patent GB-130707-A (GB)
Title: Improvements in or relating to Fluid Recoil Brakes for Ordnance.
IPC: F41A25/02
Filed: 1918-04-30
Abstract: 130,707. Compagnie des Forges et AciÚries de la Marine et d'Homecourt. April 30, 1917, [Convention date]. Recoil apparatus.-Relates to apparatus in which the length of the recoil is regulated according to the elevation of the gun by means of a valve controlling the flow of liquid. According to the invention, the lift of the valve is limited by a stop-face which is adjusted by a wedge device operated by a fixed cam when the gun is elevated. The invention is shown applied to hydro-pneumatic apparatus in which the liquid passes through an orifice 4 controlled by a valve 6 the lift of which is limited by a stop-face 10 on a socket 9. The socket is adjusted by a wedge 12 attached to the front of a rod 13, to the rear of which is fixed a block 16 having inclined grooves engaged by corresponding ribs 18 on a vertically sliding block 19 which is raised, when the gun is elevated, by a fixed cam 21 on the gun mounting. In a modification, Fig. 3, the stop 27 for the valve 6 is raised by a wedge 29 at the front of a rod 30 which is wholly outside the body of the regulator and is directly operated by a cam 21.
Patent GB-1030707-A (GB)
Title: Tensioning strap and method for the fitting thereof
IPC: F16L33/035
Filed: 1963-02-22
Abstract: 1,030,707. Straps and bands. J. A. BYWATER. Feb. 22, 1963, No. 7278/63. Heading A4X. A tension strap for use as a hose clip consists of a stiff resilient metal strip 11 of uniform width and thickness having a central band of transverse slots 12 at regular intervals, the metal 15 between being offset to provide oppositely facing projections 13, 14 forming ratchet-like teeth which when the strap is bent into a ring will slide in one direction but lock against movement in the other. A ring 22 prevents disengagement of the ends.
Patent GB-289424-A (GB)
Title: Improvements in or connected with the construction of cathodes for electric discharge devices
IPC: H01J1/15
Filed: 1928-03-09
Abstract: 289,424. De Forest Phonofilms, Ltd., (Assignees of Forest, L. de). April 27, 1927, [Convention date]. Vacuum tubes. - A thermionic cathode consists of a flat unit having a number of parallel filaments 1 bound together by transverse elements 2 and carrying electron emitting material 3, such as oxides of the rare earths, or of barium, calcium, or strontium. The transverse elements may be of platinum, molybdenum, or nichrome, and may be interwoven with the filaments to form a mesh.
Patent GB-396325-A (GB)
Title: Improvements in devices for illuminating microscopic objects with incident light
IPC: G02B21/08
Filed: 1933-03-11
Abstract: 396,325. Microscopes. ZEISS, C., [Firm of], Carl Zeiss-Strasse, Jena, Germany. March 11, 1933, No. 7415. Convention date, March 16, 1932. [Class 97 (i).] In an illumination device using incident light and comprising an incandescent bulb and a converging optical system the axis of which intersects the axis of the microscopes in the object plane, the illuminating device is carried by a bracket mounted on the microscope tube so as to be rotatable about the axis of the microscope, and is adjustable on the bracket about an axis intersecting the said axis at right-angles at its point of intersection with the axis of the illuminating system. The microscope tube a carries a member c to which the objective d is attached and this member acts as a bearing for a ring e integral with the bracket f, the axis of the bearing being the axis g of the microscope. The bracket f has a groove h in which is displaceably mounted a slide i carrying the illumination system comprising the bulb o and a converging system in the form of a glass ball q. The bracket f is of circular shape, its centre of curvature being at the point of intersection of the axis g and the axis x of the illumination system. The slide i can be secured in any position in the guide h by a clamping screw l. The member q is mounted in a sleeve p which can be adjusted axially relatively to the bulb o.
Patent GB-472118-A (GB)
Title: Improvements in or relating to compositions of wood and rubber
IPC: C08L7/00
Filed: 1936-03-12
Abstract: Plastic compositions for forming floor coverings, road blocks, soles for footwear, and nonslip surfaces for brake-blocks, foot-pedal covers, mats, grips for handles, &c. consist of elongated wood particles having a length of 1/16 to 5/16 inch compounded with natural or synthetic rubber or compounds having rubber-like properties such as those produced from oil and sulphur.  The products described in Specifications 451,442, 453,854, 456,359, [all in Group IV], 457,310; 461,632 and 461,635, [both in Group IV], may be used. Wood wool may be mixed with natural rubber and the mixture milled until the wood is reduced to particles of the desired length.  The products are calendered or moulded and vulcanized under pressure. The wood particles may be treated preliminarily with a waterproofing agent such as casein.  Fillers, ground waste rubber, glues, bitumens, gums, &c., may be added.  A sheet of the composition may be united to a sheet of ordinary rubber flooring material by vulcanizing the two together under pressure.  Specification 385,001 also is referred to.
Patent GB-526058-A (GB)
Title: Process for the manufacture of hollow articles in glass or other material capable of being drawn in the plastic state
IPC: C03B15/14
Filed: 1939-03-07
Abstract: 526,058. Drawing glass and similar material. SOC. DES PRODUITS CERAMIQUES DE SARS-POTERIES. March 7, 1939, No. 7425. Convention date, March 18, 1938. [Class 56] Relates to the manufacture of tubular or elongated articles of glass, or of other plastic material capable of being drawn. According to the invention, a tube or article 8 is formed with ribs 6 which are gripped by the drawing rollers 13, 14, so that pressure on the body of the tube is avoided. Subsequently, the ribs are removed from the finished article. The tube is drawn upwards through a die or draw-plate 1 which is provided with slots that form the ribs.
Patent GB-939474-A (GB)
Title: A process for the production of polyesterurethanes containing recurring carbodiimidegroups
IPC: C08G18/16
Filed: 1962-02-26
Abstract: A process for the production of polyesterurethanes containing recurring carbodiimide groups comprises reacting a hydroxyl terminated polyester derived from a polycarboxylic acid and a polyhydric alcohol with an excess (calculated on the free hydroxyl groups of the polyester) of a polyisocyanate in the presence of a phosphorus compound which promotes the formation of carbodiimide groups, as a catalyst.  Many carboxylic acids, polyhydric alcohols, polyisocyanates, catalysts and chain-extending and cross-linking agents are specified.  The products may be used in the preparation of elastomeric or porous products.  In the examples:-(1) an ethylene glycol/adipic acid polyester is reacted with naphthylene-1:5-diisocyanate and butane-1:4-diol in the presence of triphenyl phosphine; (2) and (3) the catalyst of Example 1 is replaced by 1-phenyl-3-methyl-1-phosphacyclopent-3-P-oxide and (4) a foam is made by reacting a diethylene glycol/adipic acid polyester with tolylene diisocyanate in the presence of dimethyl benzylamine, a diphenyl oxideethylene oxide emulsifier, castor oil sulphate, water, polydimethylsiloxane and triphenyl phosphine oxide. U.S.A. Specifications 2,663,736, 2,663,739 and 2,853,473 are referred to.ALSO:A process for the production of polyesterurethanes containing recurring carbodiimide groups comprises reacting a hydroxyl terminated polyester derived from a polycarboxylic acid and a polyhydric alcohol with an excess (calculated on the free hydroxyl groups of the polyester) of a polyisocyanate in the presence of a phosphorus compound which promotes the formation of carbodiimide groups, as a catalyst.  Many polycarboxylic acids, polyhydric alcohols, polyisocyanates, catalysts, chain-extending and cross-linking agents are specified.  The products may be used in the preparation of elastomine or porous products.  In the examples:- (1) oxethylene glycol/adipic acid polyester is reacted with naptthylene-1 : 5-diisocyanate and butane- 1: 4-diol in the presence of triphenyl phosphine; (2) and (3) the catalyst of Example (1) is replaced by 1-phenyl-3-methyl-1-phosphacyclopent-3-P-oxide and (4) a foam is made by reacting a diethylene glycol/adipic acid polyester with tolylene diisocyanate in the presence of dimethyl benzylamine, a diphenyl oxide-ethylene oxide emulsifier, castor oil sulphate, water, polydimethylsiloxane and triphenyl phosphineoxide.  U.S.A. Specifications 2,663,736, 2,663,739 and 2,853,473 are referred to.
Patent GB-403349-A (GB)
Title: An improved process for making artificial silk
IPC: D01F2/16
Filed: 1932-03-12
Abstract: Blue colouring matters such as blue cobaltous stannate, blue oxide of tungsten, cobalt phosphate, and Indanthrene Brilliant Blue R are carried on colourless inorganic or organic colour supports such as alkaline earth sulphates, titanium oxide, and thorium oxide.  In an example, barium sulphate is suspended in a solution of cobalt sulphate, sodium phosphate is added, and the precipitate filtered and ignited.ALSO:Pure white artificial silk is obtained by incorporating in the spinning solution a small quantity of finely divided inert pigment which has a colour complementary to the natural colour of the filaments, whether the filaments are coloured due to the nature and quality of the materials used in their preparation, or due to the presence of finely divided incorporated substances.  Suitable pigments are blue cobaltous stannate, blue oxide of tungsten, and cobalt phosphate, and these may be employed alone or carried on colourless inorganic or organic substances such as alkaline earth sulphate, titanium oxide, or thorium oxide.  These colour supports may be used also with organic colouring matters, e.g. Indanthrene Brilliant Blue R.  The pigments may be rubbed up with soaps such as sodium ricinoleate before incorporation in the spinning solution.  In an example, barium sulphate is suspended in a solution of cobalt sulphate and sodium phosphate added.  The precipitate is ignited, ground in sodium ricinoleate solution, and distributed in a viscose spinning solution in quantity sufficient to counteract the natural colour of the filaments produced.
Patent GB-307471-A (GB)
Title: Manufacture of ethyl acetate
IPC: C07C69/14
Filed: 1929-03-08
Abstract: 307,471. I. G. Farbenindustrie Akt.- Ges. March 8, 1928, [Convention date]. Ethyl acetate is produced with the aid of a strong acid as catalyst, by using an excess of acetic acid in the still during most of the process, strong ethyl acetate being returned from the condenser to the top of the distilling column so as to flow in counter-current to the rising vapours. After the process has been in operation for some time and the ester has obtained a high strength, alcohol is slowly added at such a rate that the strength of the . ester does not appreciably diminish. The water separates from the ethyl acetate in a receiver connected to the condenser, and is eliminated, a portion of the upper layer (ethyl acetate) being returned to the top of the column as above described, and the remainder withdrawn from the process. Finally, an excess of alcohol is added, and the mixture of alcohol and ester which distils is used in the next batch. In a modification an equimolecular mixture of alcohol and acetic acid may be added during the process instead of alcohol alone, alcohol alone being added at the end as above described.
Patent GB-101938-A (GB)
Title: Improvements in the Twisting of Cord and the like.
IPC: D07B3/08
Filed: 1916-05-30
Abstract: 101,938. Cooper, E. W., and Dalton, Barton, & Co. May 30, 1916. Drawings to Specification. Poocess for twisting cord &c.-The strands to form the cord &c. are drawn from a creel of idle bobbins by a feed-roller. The laying is effected by a top and flyer arrangement, and the cord is wound on a bobbin co-axial with the flyer. The essential feature of the invention is that the strands on the creel bobbins possess a certain amount of primary twist which is just taken out by the contrary twisting action of the flyer. The cord &c. thus produced requires no further twisting to make it limp and ready for use. Specification 2759/11 is referred to.