baber/WOPTO huggingface dataset:
Patent GB-673773-A (GB)
Title: Improvements in or relating to the construction of viscous friction dampers
IPC: F16F9/30
Filed: 1950-04-06
Abstract: 673,773. Torsional vibration dampers. HOLMES & CO., Ltd., W. C., CROSET, L. P., and HOLMES, F. B. April 6, 1950, No. 8696/50. Class 108(iii) A method of constructing a viscous friction damper of the type in which an annular slipping flywheel is enclosed within a casing adapted to be fixed to a rotary shaft, includes the steps of forming or fabricating a first inwardly flanged cylindrical component with an internal diameter slightly greater than the external diameter of the flywheel, similarly forming a second outwardly flanged ;externally cylindrical component with an external diameter less than the internal diameter of the flywheel, bringing the two components together so as to enclose the flywheel and welding them together to form a casing therefor with two continuous welds, one weld in the region of the plane containing one end face of the flywheel, and the other weld in the region of the plane containing the other end face of the flywheel. In the arrangement shown, an annular flywheel 11 is enclosed by a first component 12 of a fluid tight casing, including an inward flange 12a, welded to a second component 13 having a corresponding outward flange 13a. The end and cylindrical surfaces of the flywheel may be polished and may be coated with a protective layer of chromium or cadmium. The complimentary surfaces of the casing may also be polished. The polished surfaces of the flywheel and the casing are preferably treated with a viscous fluid such as silicone oil prior to assembly. A clearance between the inner periphery of the flywheel and the component 13 acts as a reservoir which contains about two thirds by volume of viscous liquid and one third air. A filling plug may be secured by welding. The first component 12 is formed by pressing and the second component 13 is formed by pressing or drop stamping. The casing is rigidly attached to a shaft (not shown), by means of a flange 17 welded to the component 13. In a modification, Fig. 3, (not shown), the flange 17 is integrally formed as an inwardly projecting flange aligned with the flange 13a. In another arrangement Fig. 4, (not shown), each of a pair of flywheels is enclosed by a space defined by one of a pair of first components and a central outward flange of a common second component.
Patent GB-492722-A (GB)
Title: Improvements in luminescent materials
IPC: C09K11/08
Filed: 1937-03-24
Abstract: 492,722. Luminescent materials. GENERAL ELECTRIC CO., Ltd. (Patent- Treuhand-Ges. f³r Elektrische Gl³hlampen) March 24, 1937, No. 8731. [Class 98 (i)] An artificial luminescent material comprises a matrix of the halide of an alkaline or alkaline earth metal and an activator of copper, silver, cerium, thallium, tin or lead present in a molecular proportion of not less than 1 per cent. Manganese may also be present as a part activator. Numerous examples of the chlorides, bromides and iodides of Li, Na, K, Rb, Cs, Ca, Sr, Ba and Mg, singles or in combination, and tables of the luminescent properties are included in the Specification. The materials are prepared by melting together the matrix and a salt of the actuating metal, preferably a halide. If the salt of the activator is volatile, e.g. lead or thallium, the matrix and the salt of the activator are dissolved in the same solvent. Examples of the preparation of magnesium bromide activated by tin, calcium iodide activated by lead, and calcium iodide activated by lead and manganese are given in the Specification. Specification 410,347, [Group III], is referred to. Reference has been directed by the Comptroller to Specifications 350,732, [Group III], 391,100, 391,914 ; and 477,037, [Group III], (as open to inspection under Sect. 91 of the Acts).
Patent GB-853380-A (GB)
Title: Improvements in or relating to immersion pipes
IPC: C21C7/10
Filed: 1959-03-13
Abstract: 853,380. Composite pipes ; pipe joints. HERAEUS G.m.b.H., W. C., and RUHRSTAHL A.G. March. 13, 1959 [March 13, 1958], No. 8825/59. Classes 99(1) and 99(2). An immersion pipe for connecting a vacuum degassing apparatus to a body of molten metal comprises a pair of tubular members 1, 2 of non-metallic ceramic material extending substantially concentrically within and spaced from each other along the entire length thereof, and a tubular, metallic member 3 disposed between and spaced from the members 1, 2 so as to form gaps 4 between all the members. There are means for securing the members at their upper ends to the apparatus at a point above the level of the molten metal so that all of the members are freely suspended independently of each other along their entire length for immersion of their lower ends in the metal, the gaps then being adapted to permit a small amount of the metal to rise therein to a level depending upon the depth of immersion of the members into the metal and to fill out the gaps up to the level of the metal to form a hermetic seal therein. As shown, the members 1, 2, and 3 have mating conical formations and are secured by means of a mounting ring 8 to the flange 11 of a lined, metal pipe 12 connected to the degassing apparatus, a packing 9 of compressible material being interposed between the ring and the member 1.
Patent GB-565688-A (GB)
Title: Improvements relating to rotary drum mixing and agitating machines
IPC: B28C5/08
Filed: 1943-06-02
Abstract: 565,688. Mixing &c. apparatus. AVELING-BARFORD, Ltd., and WILCOCK, C. M. June 2, 1943, No. 8841. [Class 86] A rotary drum mixing or agitating machine for concrete, asphalt and like materials has a driving chain 15 in contact with a part only of teeth on a driving ring or band 9 on the drum 1. The chain passes from a chain wheel 13 on a driven shaft 10 around a jockey wheel 16, carried by an angularly adjustable arm 18 by which it is tensioned, to a chain wheel 14 mounted loosely on an arbor 7. Between the wheels 14, 13 the chain engages a proportion of the teeth on the band 9 on the drum. A duplicate chain drive engaging a different part of the drum periphery may be used to drive an auxiliary mechanism such as a batch meter, pump or small winch.
Patent GB-287905-A (GB)
Title: Improvements in arc lights
IPC: H05B31/00
Filed: 1928-03-26
Abstract: 287,905. K÷rting & Mathiesen Akt.- Ges, March 29, 1927, [Convention date]. Arc lamps; ash trays.-An electric arc is enclosed in a transparent or opaque casing with one or more narrow slots, particularly in the lower part of the casing. It is stated that the light emitted is of the actinic character produced by an enclosed arc. Fig. 1 shows an arc between electrodes 1 passing through insulating caps 5, 6 in the ends of a metal tube 4 having a slot 7 in its lower part. Magnets disposed at the sides of the tube 4 keep the arc axial. In a modification the electrodes are arranged eccentrically so that the arc is close to the slot. Below the slot 7 is :a screen 11 to catch ash, surrounded by an ash receptacle 10. In a further modification the slot is rather to one side of the bottom of the casing and a pocket, with a door, is formed in the casing to receive ash.
Patent GB-566099-A (GB)
Title: Improvements in or relating to cooking utensils
IPC: A47J36/02
Filed: 1943-06-08
Abstract: 566,099. Cooking vessels. DAVIES, E. S., and WELLS, F. G. June 8, 1943, No. 9184. [Class 66] A saucepan or like cooking utensil comprises a metallic container 2 having the side walls provided with an adherent covering 1 of heatinsulating material, such as an asbestos composition. The covering may be preformed and the container force fitted therein, or may be formed by spraying or moulding the material, e.g. an asbestos cement, on the container. The handle 3 may be covered with similar heatinsulating material and secured by rivets passing through the container 2 and the covering 1 or riveted directly to the container; in the latter case, the covering is slotted to engage over the handle or is provided with a hole to allow for attaching the handle, the slot or aperture being subsequently covered with the heat-insulating material. The bottom may be flat or have a domed part 8 which may communicate with channels 10 in the surrounding flat portion 9. The covering 1 or the whole vessel may be coated with vitreous enamel or the like. The lid may be made of insulating material and either coated inside and out with enamel or be lined with metal and externally coated with enamel.
Patent GB-1413645-A (GB)
Title: Spectrally sensitized silver halide photographic emulsions
IPC: G03C1/29
Filed: 1974-02-28
Abstract: 1413645 Supersensitized photographic silver halide emulsions FUJI PHOTO FILM CO Ltd 28 Feb 1974 [28 Feb 1973] 9193/74 Heading G2C Photographic silver halide emulsions contain in supersensitizing combination at least one dye of the formula:- where Z<SP>1</SP> completes a benzothiazole, benzoselenazole, #-naphthothiazole or #-naphthoselenazole nucleus, which may be substituted, Z<SP>2</SP> completes a benzoselenazole nucleus which may be substituted, A is hydrogen or alkyl, R<SP>1</SP> and R<SP>2</SP> are each substituted or unsubstituted alkyl or allyl, at least one of R<SP>1</SP> and R<SP>2</SP> carrying a hydroxy, carboxy or sulpho substituent, X<SP>1</SP> is an anion and m is 0 or 1, m being 0 when the dye forms an intramolecular salt, together with at least one dye of the formula:- where Z<SP>3</SP> and Z<SP>4</SP> each complete a halogensubstituted benzimidazole nucleus, R<SP>3</SP> and R<SP>4</SP> are each substituted or unsubstituted alkyl or allyl, at least one of R<SP>3</SP> and R<SP>4</SP> carrying a hydroxy, carboxy or sulpho substituent, X<SP>2</SP> is an anion and n is 0 or 1, n being 0 when the dye forms an intramolecular salt. Dyes of the following formulae may also be used together with the supersensitising combination:- The combination of dyes is especially useful when used in conjunction with cyan colour couplers which tend to reduce spectral sensitization in colour materials.
Patent GB-481333-A (GB)
Title: Improvements in thermo-plastic films
IPC: G03C11/08
Filed: 1937-03-31
Abstract: Thermoplastic material is heated, passed in its plastic condition through a shaped orifice to form a film, and the film while free from confining support is simultaneously subjected to a longitudinal pull and to the action of streams <PICT:0481333/IV/1> of cooling fluid directed on to the film, so as to stretch the film to the desired dimensions and to set the material at such dimensions.  The material contained in the heated container 1 is drawn from the orifice 4 between compressed air or water spray nozzles 5, and the film is wound up on a driven roll 8 together with a paper or fabric interlayer 91.
Patent GB-308368-A (GB)
Title: Improvements in air cleaners
IPC: F02M35/024
Filed: 1929-03-22
Abstract: 308,368. A. C. Spark Plug Co., (Assignees of Kamrath, H. G.). March 22, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Filtering.-A mass 14 of filtering material is arranged in a cylindrical casing having an air outlet 18 and inlet louvres 20 in the wall facing in the same direction, the wall being reversible to suit different locations of an engine to which the air is to be supplied. The filtering mass may be retained between wire nets 28, 30, and may be made of a tube of woven metal rolled up and coated with oil.
Patent GB-150750-A (GB)
Title: Improvements in jiggers for use in dyeing and other operations
IPC: D06B3/32
Filed: 1917-06-30
Abstract: 150,750. Rawlinson, S., and Mather & Platt. June 30, 1917. Feeding and winding webs.-A brake device for a jigger dyeing &c. machine in which the web is wound backwards and forwards between batch rollers b, comprises a centrally-pivoted frame k provided with brake shoes in straps m adapted to be brought alternately into contact with the brake drums It on the batch rollers according to the travel of the cloth, by means of a rolling or sliding weight o moving from one side of the pivotal centre to the other side. The travel of the weight is limited by adjustable collars p, and these may be provided with rubber cushions or springs to obviate shock.
Patent GB-253079-A (GB)
Title: Three phase wired carrier wave receiving circuits
IPC: H04B3/56
Filed: 1926-04-10
Abstract: 253,079. Wired Radio, Inc., (Assignees of Duncan, R. D.). June 5, 1925, [Convention date]. Drawings to Specification. Induction, preventing.-In a wired wireless sys. tem, three-phase carrier currents are superimposed on three-phase power lines so as to secure a uniform distribution of carrier current and to prevent interference with receivers external to the system. The lines are connected to the receiving set in such a way that the effect of one branch of the carrier input is reversed in phase to give an increased resultant current vector. Specification 245,725, [Class 40 (v), Wireless signalling &c.] is referred to.
Patent GB-1221622-A (GB)
Title: Electrostatic printing circuit
IPC: G03G15/32
Filed: 1969-02-21
Abstract: 1,221,622. Electrostatic printers. FUJITSU Ltd. 21 Feb., 1969 [23 Feb., 1968], No. 9598/69. Heading G4H. An electrostatic printer comprises a line of electrodes arranged in n groups of m electrodes a-e across the paper, an earthed plate behind the paper, opposed to the electrodes, m driving circuits 341 &c., each for energizing corresponding electrodes in all the groups, n driving circuits 331 &c., each for energizing with an opposite potential all the electrodes of one of the groups, a particular electrode being caused to print by energizing one of the drivers 341 &c., and all but one of drivers 331 &c., diodes serving to clamp the potential of the unselected electrodes of the selected group to a level sufficiently low to prevent printing taking place. In the form shown, the drivers 341 &c. apply a positive voltage, and drivers 331 &c. a negative voltage. This could be reversed, the diodes also then being reversed and the selection made by energization of one of drivers 33 and all but one of drivers 34.
Patent GB-558632-A (GB)
Title: Improvements in or relating to thermionic valve circuits
IPC: H03G3/22
Filed: 1942-07-10
Abstract: 558,632. Automatic volume control. STANDARD TELEPHONES & CABLES, Ltd., CHATTERJEA, P. K., and SCULLY, C. T. July 10, 1942, No. 9603. [Class 40 (iv)] [Also in Group XL] In a wireless receiver, automatic volume control voltages are derived from a potentiometer comprising a constant resistance in series with a thermistor, or thermally-sensitive resistance element. The heating coil of the thermistor is arranged in the plate circuit of an amplifying valve the current of which varies in accordance with signal level. The Figure shows a thermistor T2 in series with a resistance R8 and a loudspeaker field associated with the high tension supply and so arranged that an appropriate voltage is produced at terminal 5. The heater of the thermistor T2 is in series with the plate circuit of valve VI which amplifies both the direct and voice-frequency components derived from the diodes D respectively from the incoming carrier signal, potentiometer P serving as a volume control. A further thermistor T1 may be similarly controlled by the plate current of the valve VI and with resistance R6 forms a variable coupling to the output valve V2 and thus controls the volume in accordance with the signal level. In the arrangement shown thermistors with negative temperature coefficients are used. Alternatively thermistors with positive temperature co-efficients may be used by interchanging the constant resistance and the thermister resistance associated therewith to form a potentiometer. When pentode valves are used in the amplifier the heating coils of the thermistors may be placed in the screen grid circuit.
Patent GB-1113029-A (GB)
Title: Capacitor motors
IPC: H02P23/24
Filed: 1966-03-04
Abstract: 1,113,029. Induction motors; control of A.C. motors. SIEMENS-SCHUCKERTWERKE A.G. 4 March, 1966 [24 March, 1965], No. 9675/66. Headings H2A and H2J. [Also in Division D1] In a single phase capacitor motor having two phase windings constructed with different numbers of turns the motor can be arranged to provide a low and a high power output by connecting firstly one winding as the main phase and the other winding as the auxiliary phase and secondly by interchanging the function of the windings. As shown winding W1 has more turns than winding W3 so that low and high power outputs are obtained from the motor with the switch U connected to winding W1 or W3 respectively. The switch U in addition changes the direction of rotation of the motor. The motor may be used to drive an ironing machine, the low power position being used for the ironing operation and the high power position being used for withdrawal of the spring-loaded roller or shoe of the ironing machine. Alternatively, where the roller is not spring-loaded, high power can be used for the ironing operation and low power for the withdrawal of the roller or shoe.
Patent GB-704854-A (GB)
Title: Improvements in or relating to the production of aldol and crotonaldehyde
Inventor: CRAVEN ERNEST CECIL
IPC: C07C45/74
Filed: 1950-04-20
Abstract: Aldol and/or crotonaldehyde are prepared by a continuous process comprising aldolising acetaldehyde in the presence of an alkaline condensation catalyst in a reaction zone so placed in relation to a subsequent distillation zone wherein the reacted product is stripped of unreacted acetaldehyde and, if desired, crotonized, that the vapours evolved from the distillation zone pass into the liquid reaction mixture in the reaction zone, the reaction mixture in the reaction zone being maintained by suitable cooling means at a temperature below its boiling point such that it absorbs the acetaldehyde vapours evolved from the distillation zone, the reaction and distillation zones forming a closed system vented to the atmosphere only at a point above the reaction mixture in the reaction zone, whereby <PICT:0704854/IV(b)/1> permanent gases formed may leave the system.  The adolization may be effected with the aid of an aqueous alkali catalyst which may be added to the aldehyde feed or introduced directly into the reaction zone.  The distillation is effected after neutralization or after acidification to about pH4-5 according to whether aldol or crotonaldehyde is required as final product.  The reaction zone preferably forms the upper part of a fractionating column provided with bubble cap trays, perforated plates, packings or the like. Thus as shown, aqueous sodium hydroxide and acetaldehyde are fed to a cooled mixing zone 3 and the resulting mixture is led to the upper capped tray of a column whose trays in reaction zone 7 are cooled by suitable coils (not shown).  Aqueous acid, preferably acetic acid, is introduced by pipe 9 into the top of distillation zone 8 in an amount dependent on the nature of the desired final product.  The aldolacetaldehyde reaction mixture formed in zone 7 passes down into zone 8 heated by a steam coil 11.  Aldol and/or crotonaldehyde is withdrawn from the base of the column via pipe 10.  A breather 12 is provided at the top of the column whereby permanent gases may escape through outlet 14 after being washed by water or aqueous solution of caustic soda on other alkali used as catalyst, introduced via pipe 13.  Specification 630,904 is referred to.
Patent GB-137973-A (GB)
Title: A new or improved spinning toy
IPC: A63H27/127
Filed: 1919-04-16
Abstract: 137,973. Tombs, J. April 16, 1919. Flying toys and projectors therefor. -The ends of four propeller blades B are bent at b round a ring A, and a hollow cone C is fitted at the e, centre. The spinning-device consists of a wire handle D, Fig. 3, bearing a wooden reel E having a projecting pin e. To spin the top, the end d<1> of the handle D is placed in the cone C and a spring, which has been wound on the reel E, is pulled. The pin e engages and drives one of the blades B.
Patent GB-558687-A (GB)
Title: Improvements in or relating to the manufacture of electrical condensers
IPC: H01G13/02
Filed: 1942-07-13
Abstract: 558,687. Condensers. HUNT, Ltd., A. H., GROUSE, R. A., and ROGERS, J. July 13, 1942, No. 9730. [Class 37] In the manufacture of condensers wound from strips having an unmetallized margin, a side strip of metallized dielectric is first prepared, having longitudinal bands without metal and then the strip is slit longitudinally along the centre of the unmetallized bands and also along the metallized parts. As shown, the wide strip comprises metallized and clear strips 12, 13 respectively and after rolling on a spindle 47, cuts are made with a knife 69 to form strips having one metallized and one unmetallized edge. Preferably the strip is passed over rollers at a testing electric potential to burn out weak spots. In winding the strips to make condensers, alternate strips have the clear edges at the right and left, and the metallized edges may extend from one end of the roll and may have been turned over to expose the metal to facilitate end connection. Specifications 503,851, [Group II], 558,686 and 558,688 are referred to.
Patent GB-558714-A (GB)
Title: Improvements in the production of electrical condenser plates
IPC: H01G4/008
Filed: 1942-07-14
Abstract: 558,714. Coating non-metallic surfaces with metals; gildiitg, silvering and platinizing. JOHNSON, MATTHEY & CO., Ltd., and BOX, E. R. July 14, 1942, No. 9766. [Class 82 (ii)] In the production of electrical condenser plates a paste comprising a mixture of an organic liquid screen printing medium with a metal compound is applied to a suitable dielectric by a meshed printing screen and the whole fired at such a temperature for such a period of time that the organic matter is burned away and the metal compound decomposed to yield a layer of metal which adheres firmly to the dielectric. The metal compound may be one of gold, platinum or silver, and the firing carried out at 400-600‹C. for 2 hours to 5 minutes. A flux such as lead or bismuth silicate borate or borosilicate or mixtures of these compounds may be included in the paste and the liquid medium may comprise a solution of cellulose nitrate or ethyl cellulose and ethyl, amyl or butyl acetate, lactate or phthalate, and a plasticizer such as diethyl or dibutyl phthalate, medicinal paraffin, castor oil or methyl abietate. Specifications 511, 727 and 550, 047 are referred to.
Patent GB-639206-A (GB)
Title: Improvements in or relating to the manufacture of cathode ray tubes
IPC: H01J5/30
Filed: 1947-04-11
Abstract: 639,206. Cathode-ray tubes. SOC. FRANCAISE RADIO-ELECTRIQUE. April 11, 1947, No. 9767. Convention date, April 12, 1946. Addition to 631,811. [Class 39 (i)] The screen plate G of a cathode-ray tube is made separately from the rest of the envelope and joined thereto by a ground joint, as described in the parent Specification.
Patent GB-893484-A (GB)
Title: Improvements relating to preparations for treating damp walls, plaster or other porous articles
IPC: C04B26/22
Filed: 1958-03-27
Abstract: A preparation for application to walls, plaster or other porous articles to exclude damp comprises 3/4 gallon of kerosene, from 1 1/2 to 2 1/2 lb. of white lead, and from 1 1/2 to 2 1/2 fluid ounces of pine oil.  Terebine and strychnine may be added.
Patent GB-1410088-A (GB)
Title: Pipe suspension devices
IPC: F16L3/14
Filed: 1973-02-28
Abstract: 1410088 Pipe brackets J WEISS 28 Feb 1973 [28 Feb 1972] 9838/73 Heading A4B [Also in Division F2] Support means for a pipe 1 comprises a collar formed from a metal strip incorporating at one end, a hole 10 with a projection 12 in front of it and, at the other end an opening 14 for co-operating with said projection, this end and also having a cut-out portion 13 in front of the opening. The collar is assembled around the pipe 1 with the two ends engaged by nuts 7 and 8 on a threaded rod 3 fixed to horizontal wall 2. Adjustment of nuts 7 and 8 enables the height of the pipe to be adjusted. One end of the metal strip may be thicker than the rest (as at 4) or it may be of U cross-section with flanges 9, to increase the rigidity of the support. Alternatively the two ends may be superimposed one on the other in a separate U crosssection member to increase rigidity. In a further embodiment, Figs. 7 to 10 (not shown) the collar is supported by two threaded rods (27a, 27b).