baber/WOPTO huggingface dataset:
Patent GB-365687-A (GB)
Title: Improvements relating to incandescent cathode structures for electric discharge tubes
IPC: H01J1/20
Filed: 1930-11-07
Abstract: 365,687. Thermionic cathodes. EGYESœLT IZZËLAMP‡ •S VILLAMOSSAGI RESZV•NYT‡RSAS‡G, Ujpest, near Budapest. Nov. 7, 1930, No. 33568. Convention date, Nov. 8, 1929. [Class 39 (i).] Indirectly-heated cathodes consist of an electron-emitting body 1, Fig. 1 or 2, which is composed wholly of a mixture of alkaline-earth metal and one or more alkaline-earth metal oxides and which is heated by an incandescent filament not emitting electrons. The alkalineearth metal may be barium or magnesium. The filament is a helix 4 of tungsten &c. surrounding the body 1 or is within the body 1 and separated from it by ceramic material 6. The body 1 is preferably a moulded rod or cylinder with current-supply caps 2. In gasfilled rectifiers, the current from a source of 1-2 volts across the leads 5, Fig. 1, passes mainly through the helix 4. The body 1 may be made by mixing magnesium with barium oxide, heating in vacuo or neutral gas to reduce some of the oxide to barium, mixing with paraffin oil and pressing into shape. The proportions in the original mixture may be such that not all the barium oxide is reduced and that the barium formed can remain bound in the body 1, with or without a slight surplus of barium which is vaporized as a getter. In a modified process, the mixture of magnesium and barium oxide is pressed to form the body 1 and is heated after mounting in the discharge tube and evacuating the tube. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a cathode in which the rod-shaped body 1 is directly heated by current supplied through the caps 2, the helix 4 being omitted. This subject-matter does not appear in the Specification as accepted.
Patent GB-486126-A (GB)
Title: Improvements in and relating to the feeding of tobacco to cigarette making machines
IPC: A24C5/39
Filed: 1936-12-08
Abstract: 486,126. Cigarette - making machines. SHACKLETON, J., and INDUSTRIAL MACHINERY CO., Ltd. Dec. 8, 1936, No. 33702. [Class 130] In mechanism for feeding tobacco to continuous rod machines, tobacco is delivered on to a travelling surface to form a carpet which is advanced to means adapted intermittently to sever sections from the leading edge of the carpet for delivery to the trough of the machine. In one form, Fig. 1, tobacco from a carded feed drum 11 is showered by a picker roll 12 upon a smooth feed drum 10, which may be of hard wood. A carpet or mat 14 of tobacco is formed on the drum 10 and sections severed from the leading edge by a reciprocating knife 15 fall upon a rotating worm 17 or a paddle wheel &c. by which they are showered into the trough 20. The worm may impart to the tobacco a movement having a forward component. The knife 15 co-operates with an abutment member 18 and a shield 19 may be provided to aid in retaining the carpet on the drum. In a modification, the tobacco may be divided, by partitions carried by the picker roll 12, into narrow streams forming narrow carpets on the drum 10, the carpets being severed by a series of short knives. In another form, Fig. 3, the tobacco is showered by the picker on a conveyer belt 25 which delivers it over a ledger plate 26 with which co-operates a rotary knife 27 to sever sections from the leading edge. An upper belt 33 and ledger plate 29 may be provided, forming a slot over which the knife passes, and the knife may have straight or helical blades. In a further modification, the severed sections of tobacco are delivered upon a belt conveyer from the end of which they are showered by a picker roll upon a cigarette-paper web or band.
Patent GB-451076-A (GB)
Title: Improvements in and relating to direct-current ampere-hour meters for use in remote measurement
IPC: G01R11/30
Filed: 1935-12-05
Abstract: 451,076. Supply meters. LANDIS & GYR AKT.-GES., 1, Hofstrasse, Zug, Switzerland. Dec. 5, 1935, No. 33745. Convention date, Dec. 15, 1934. [Class 37] Direct-current ampere-hour meters employed in impulse measurement systems are provided with a compensating field winding for producing either a forward torque on the armature or an opposing torque on the brake disc for the purpose of compensating the meter for armature reaction and for the electrical inertia produced when the condensers feeding the armature circuit are rapidly charged and discharged. Incoming impulses actuate relays 2 to energize condensers 3 and the armature 6 which rotates with a transmitter 13 impulsing relay 14. The circuit of relay 14 includes a further impulsed condenser 3<1> energizing the compensating winding 12 to effect the desired compensation on the brake disc 10, normal field windings 8, 11 being energized from battery 4.
Patent GB-342012-A (GB)
Title: Improvements in or relating to an apparatus for producing lengths of fabric coated with rubber
IPC: B29C70/68
Filed: 1929-11-06
Abstract: 342,012. Drying fabrics in long lengths. GUMMIWERKE FULDA AKT.- GES., Fulda, Germany. Nov. 6, 1929, No. 33769. Convention date, Sept. 20. [Class 34 (i).] Apparatus for coating fabric with rubber and drying it comprises a chamber divided by horizontal partitions into compartments through which the fabric is passed in succession from top to bottom of the chamber, containers for rubber through which the fabric is passed, or other coating means, being located at different positions in the apparatus. Preferably the coating means are arranged on one side of a vertical partition, and the horizontal partitions on the other. The latter may be hollow structures through which a heating medium is passed. The apparatus comprises a chamber 1, divided by a step-like partition into a heating chamber 2 and a coating chamber. The heating chamber is divided into compartments by hollow horizontal partitions 13, 14, 15, through which steam or other heating fluid is passed. The fabric 3 passes first through the upper compartment of the chamber and is heated, thereafter passing through rubber solution in a container 9. It then passes into the chamber again, and over a roller 12 into the next lower compartment. From this compartment it passes to the coating device 17, where one side is coated. It then passes into the chamber again, and over the roller 20 into a lower compartment. Thence it passes out, and is reversed by means of rollers 22 .. 25, before being coated on the opposite side by the device 28. After a further passage through the heating chamber it is wound on a roller 33. Dry air may be admitted to the chamber from a conduit 34, and heated by means of a heating device 35, preferably electrical. The hot air follows the course indicated by the arrows P1, and escapes through a pipe 36.
Patent GB-797393-A (GB)
Title: Improvements in and relating to electric arc furnaces
Inventor: STEELE OWEN STEVENSON
IPC: H05B7/00
Filed: 1953-12-04
Abstract: 797,393. Automatic control systems for arcs. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 3, 1954 [Dec. 4, 1953], No. 33813/53. Class 38 (4). [Also in Group XXXVII] A system for regulating the electrode separation of an electric furnace arc by means of an electric servomotor comprises, manually or automatically-operated means for controlling the motor torque, the automatic control being in accordance with some variable such as an are characteristic, and independent means for producing a constant torque in the motor to balance the weight of the electrodes. In one embodiment for automatic control of an arc characteristic, the servomotor, having a constant excitation field winding 4, Fig. 1, has its armature M mechanically coupled to the electrode 1 of the furnace F, and electrically connected in a Ward-Leonard system to the armature of a generator G, having control windings 7, 8. Winding 7 produces a constant cornponent of generator excitation to provide the constant motor torque, and winding 8 is energized in either direction by the output of the manual or automatic control mechanism (indicated by 13), said output depending upon the deviation of the arc characteristic from the required value. In a second embodiment, generator G, Fig. 2, is energized through an amplidyne exciter E, whose field winding 7<SP>1</SP> is energized by the control mechanism output in conjunction with a constant voltage derived from a resistor 21. In a third embodiment, a booster machine B, Fig. 3, provides a steady current, and a corresponding constant motor torque and a magnetic or other amplifier A may be provided in the control circuits. Specification 640,633 is referred to. Reference has been directed by the Comptroller to Specification 725,868.
Patent GB-955924-A (GB)
Title: Liquid sprayer
IPC: B05B11/00
Filed: 1962-09-04
Abstract: 955,924. Spray producers. HUNG-TONG LEE. Sept 4, 1962, No. 33837/62. Heading B2F. A liquid sprayer comprises a container 1 for the liquid to be sprayed, a tubular cylinder 5 extending into the container, a tubular plunger 10 slidably mounted in the cylinder, a sealing member 11 attached to the plunger and engaging the inner wall of the cylinder, a spray head 18 on the outer end of the plunger, a unidirectional valve in the plunger and a unidirectional valve in the inner end of the cylinder. The valve in the plunger comprises a ball 14 in the sealing member 11, which is a rubber cap fitting over the end of the plunger and having a hole 13 which can be covered by the ball, and the valve is thus adapted to allow the flow of liquid from the cylinder 5 through the plunger to the spray head 18. The valve at the end of the cylinder comprises a ball 7 and an apertured seating 8 and is adapted to allow the flow of liquid from the container 1 into the cylinder 5. The outer portion of the plunger tube is looped at 16 and the finger hole thus provided facilitates reciprocation of the plunger. On outward movement of the plunger the ball 14 closes on its seating and the cap 11 therefore acts as a piston and draws liquid from the container into the cylinder 5 through the valve 7, 8. On the return stroke the ball 7 closes its aperture and the liquid in the cylinder is forced through the member 11, and through the plunger 5 and out through the nozzle in the spray head 18.
Patent GB-304884-A (GB)
Title: Improvements in or relating to rollers covered with leather or similar material
IPC: D01H5/74
Filed: 1927-12-14
Abstract: 304,884. Fyfe, H. G. Dec. 14, 1927. Rollers.-The leather or like covers of rollers, such as pressing-rollers for jute, flax, hemp, &c. drawing and roving frames, are applied by forming a leather &c, strip 1 into a ring and stretching it by inserting a segmental ring of wood, metal, &c. some or all of the segments 4 - - 7 of which are wedge-shaped, the leather &c. ring and the backing being secured on the roller 8 by fixed and removable flanges 10, 12 or by screws 14, or both. The strip 1, which is coated with adhesive, may be fastened at its joint 2 by dowels 3 to a ply-wood segment 4, the other segments being subsequently forced into place and the whole turned to size. The joint 2 may be oblique. The Provisional Specification states that the complete ring may be cemented to the roller 8.
Patent GB-1191126-A (GB)
Title: Method of Making Cracking Catalyst
Inventor: CORNELIUS EDWARD BERNARD
IPC: C10G11/05
Filed: 1967-07-24
Abstract: 1,191,126. Cracking catalysts. AIR PRODUCTS & CHEMICALS, Inc. 24 July, 1967, No. 33842/67. Heading B1E. [Also in Division C5] Cracking catalysts are made by mixing 4-19 parts of clay containing less than 1% Fe per part of an ammonium zeolite molecular sieve substantially free from exchangeable metal cations and having Si:Al ratio 1.5 to 8 and an average pore diameter of 10-18Š, forming the mixture into particles and subjecting the particles to an atmosphere containing 10- 100% steam at a temperature above 700‹C. for 2-6 hours. The preferred zeolite is Zeolite Y particularly in its sodium form Na, Al 2  Si 5  O 14 .9H 2 O. American Specification 3,119,660 is referred to.
Patent GB-1047566-A (GB)
Title: Improvements in or relating to 5,19-cyclo-í¸-steroids
IPC: C07J53/00
Filed: 1963-08-27
Abstract: Novel steroids of the formulae <FORM:1047566/C2/1> (wherein R and R1 are hydrogen or acyl; R2 is hydrogen, C1- 8 alkyl, C2- 8 alkenyl or C2- 8 alkynyl; Y is b -hydroxyl, b -acyloxy or keto; R3 is hydrogen, hydroxyl or acyloxy; and R4 is hydrogen or acyl; the acyl groups being derived from hydrocarbon carboxylic acids of less than 12 carbon atoms which are optionally substituted) are prepared (1) for the androstane compounds, by treating D 5-androstene-3b , 19-diol-17-one-3-acetate with tosyl chloride in pyridine to give the 19-tosylate, refluxing this in a tertiary amine or a reagent capable of donating alkoxide ions and a non-polar organic solvent to give 5,19-cyclo-D 6-androsten-3b -ol-17-one acetate, saponifying this to the free ol, reducing this to the 3,17-diol and oxidizing this to the 3,17-dione, or converting the 3b -ol-17-one to 17b -hydroxy-17a -hydrocarbon derivatives by standard methods and oxidizing these to the 3-ones, or reducing the 3b -ol-17-one acetate to the 17b -ol, converting this to the tetrahydropyranyl ether, saponifying this to the 3-ol, oxidizing this to the 3-one and removing the ether group to give the 17b -ol-3-one, and acylating any free ols by standard procedures; or (2), for the pregnane compounds, by converting a D 5-pregnene-17a -R3-3b ,19-diol-20-on 3-acetate to the 19-tosylate and converting this to the 5,19-cyclo-D 6-pregnene as in (1), which can be saponified, oxidized and esterified.
Patent GB-822149-A (GB)
Title: Method of melting, or concentrating to a melt a solution of, urea and other organic compounds
IPC: C07C273/16
Filed: 1955-11-25
Abstract: <PICT:0822149/III/1> <PICT:0822149/III/2> An organic compound, which when solid is practically a non-conductor of electricity but which when molten has sufficient conductivity to produce the heat required for forming a melt, and which is liable to decompose if overheated, is melted or concentrated by passing electric current directly through a quantity of the compound in the liquid state, while continuously or periodically adding further compound in solid form or as a solution, and discharging compound in the molten state. Compounds mentioned include urea, acetamide, benzoic acid, maleic anhydride and phthalic anhydride.  Suitable apparatus includes a tank 1 with radially disposed electrodes 2 spaced by a plate 3. In the example, molten urea is first supplied to the tank and the electrodes, e.g. of carbon, are fed with a 2 or 3 phase supply. Powdered urea is continuously fed to the space 4a and a stirrer 4 disperses it into the spaces between the electrodes.  Molten substance flows through a heated discharge conduit 5 discharging into a tank 6.  The wall of the tank 1 above the liquid level is heated. Specification 822,150, [Group XI], is referred to.ALSO:<PICT:0822149/IV (a)/1> <PICT:0822149/IV (a)/2> An organic compound, which when solid is practically a non-conductor of electricity but which when molten has sufficient conductivity to produce the heat required for forming a melt, and which is liable to decompose if over-heated, is melted or concentrated by passing electric current directly through a quantity of the compound in the liquid state, while continuously or periodically adding further compound in solid form or as a solution, and discharging compound in the molten state. Compounds mentioned include urea, acetamide, benzoic acid, maleic anhydride, and phthalic anhydride.  Suitable apparatus includes a tank 1 with radially disposed electrodes 2 spaced by a plate 3. In the example molten urea is first supplied to the tank and the electrodes, e.g. of carbon, are fed with a 2 or 3-phase supply. Powdered urea is continuously fed to the space 4a and a stirrer 4 disperses it into the spaces between the electrodes. Molten substance flows through a heated discharge conduit 5 discharging into a tank 6.  The wall of the tank 1 above the liquid level is heated.  Specification 822,150, [Group XI], is referred to.
Patent GB-1192703-A (GB)
Title: Torsional Vibration Damper
IPC: F16F15/173
Filed: 1968-07-17
Abstract: 1,192,703. Vibration dampers. CATERPILLAR TRACTOR CO. 17 July, 1968 [7 Aug., 1967], No. 33997/68. Heading F2S. The annular housing 14 of a viscous torsional vibration damper 10 has, on the inner surface of its inner cylindrical wall 24, a plurality of circumferentially spaced recesses 32 which act as reservoirs for damping liquid. The housing is constructed by welding a hydro-formed channel member 20, Figs. 2 and 3 (not shown), which constitutes the two cylindrical and one of the plane annular walls of the housing, to a flat annular cover (30). The damper housing contains an annular inertia weight 12 which preferably contains radial passage 16 through which the damping liquid can flow.
Patent GB-938765-A (GB)
Title: Sulfoaluminate cement
IPC: C04B28/06
Filed: 1961-09-22
Abstract: The invention relates to sulphoaluminate cement compositions comprising in finely divided form (a) a calcium aluminate slag, the analysis of which as formed shows the presence of fluorine in the range 0,25 to 4,0% by weight, which has an Al2O3 to CaO ratio within the range 0,5 to 1,25% by weight and has an Al2O3 to SiO2 ratio of not less than 2 : 1 by weight; (b) a substantially neutral anhydrite, as defined hereinafter, which has the properties of anhydrite which has been calcined at a temperature of between at least 1200 DEG F. and 2000 DEG F., the weight ratio of slag : anhydrite being from 1 : 1 to 2,5 : 1 and (c) an additive having the property of retarding the setting time of the cement or of rendering the cement expansive when the slag is cooled slowly in four hours, these latter additives rendering the cement non-expansive when the slag is cooled rapidly i.e. quenched.  By substantially neutral anhydrite is meant an anhydrite in which all of the alkaline earth carbonates have been converted into their insoluble salts. Natural gypsums which contain carbonates or other materials which decompose to form alkaline reacting materials on heating must be treated with a strong acid e.g. H2SO4, H2SiF6, H3PO4 or HF prior to calcination at 1200 DEG F. to 2000 DEG F.  Gypsum which is a by-product of sulphuric acid treatment of lime containing ores e.g. phosphate rock, needs no treatment prior to calcination.  Natural gypsum which is free of material which is, or produces on heating an alkaline reacting material may also be calcined without prior acid treatment.  The slag used may also contain P2O5 and titania impurities.  The analyses of several slags are given.  Expansive additives specified are zinc sulphate, sodium bisulphate and ammonium sulphate and setting time retarders specified are a sugar-lime-silica mixture (preferred), "Plastiment" (tartaric + citric + saccharic + tetrahydroxyadipic acids), calcium lignin sulphonate and borax.  Examples describe the preparation of many cement compositions (including some prepared from slag which does not contain F, and anhydrites other than those defined) and also the preparation of concretes which may be used to form, prestressed concrete.  The calcium aluminate by-product slag may be combined with pulverized gypsum instead of anydrite to produce a plaster having greater strength than the normal gypsum plaster. Specification 317,783 is referred to.
Patent GB-844565-A (GB)
Title: Improvements in or relating to a method of and apparatus for producing pouches
IPC: B29C65/02
Filed: 1958-10-23
Abstract: 844,565. Making pouches; multi-ply bags. QUESTER, W., [trading as QUESTER, W. [firm of]]. Oct. 23, 1958 [Oct. 23, 1957], No. 34015/58. Classes 94(2) and 133. Pouches 1 of synthetic plastic sheet material are produced by bringing webs 4, 5 of such material into face to face relation, successively feeding spaced stiffening sheets 12 of card or paper of less width than the webs between the webs as they move forward, welding the webs together at their edges 15 and between the sheets at 16 by means of an I -shaped sealing member 13, cutting the material along the seams 16 by a knife 20, 21 to form pouch blanks, folding one end portion 26 of each blank on to the adjacent portion and welding the sides of the overlapping portions together. Excess material is trimmed from the web edges by circular knives 17, 18, while grippers 19 draw the web forward to the knife means 20, 21. Holders 25 (not shown), 25a mounted on rails 27 grip each pouch blank and move it sideways so that end portion 26 is bent back upon the remaining portion by a folding blade 31 (not shown); they then guide the doubled-over blank under the welding device 28.
Patent GB-1107829-A (GB)
Title: Portable sheet metal hole cutter
IPC: B23B51/05
Filed: 1965-08-09
Abstract: 1,107,829. Portable hole cutter; drilling. SNAPPY Inc. 9 Aug., 1965 [4 May, 1965], No. 34037/65. Addition to 995,851, Headings B3C and B3K. A portable hole cutter for cutting holes in sheet material comprises a pivot 18 adjustable along a slot in an arm portion 12 of the cutter body and a milling bit 28 journalled in a tube portion 13 of the cutter body. The end portion 21 of the tube portion 13 is spaced from the sheet to be cut by a bracket 35 which has a cutting member 41 in engagement with the sheet 40 to provide a gap through which chips may escape, and a stabilizing element 38 projecting into the slot 39 being cut. The cutting member 41 is provided with a cutting edge (42), (Fig. 4, not shown). The use of the cutting member 41 and stabilizing element 38 produces a smoother cut, prevents binding of chips, and enables a hole to be cut with less heat generated.
Patent GB-743320-A (GB)
Title: Process and apparatus for the manufacture of folded cartons
IPC: B31B50/00
Filed: 1953-12-08
Abstract: 743,320. Endless conveyers. REGNITZKONSTRUKTIONS-GES. Dec. 8, 1953 [Dec. 8, 1952], No. 34130/53. Class 78 (1). [Also in Group XVII] A carton-forming machine (see Group XVII) comprises two conveyers 1, 2, one carrying mandrels 10 for part forming the carton and the other spring-loaded gripper cheeks 44 between which the cartons are thrust by the mandrels 10 for removal from the mandrel. The cheeks 44 are carried on elements 42 pivoted on the conveyer 2, each having an arm 78 carrying a roller running in a cam track 80, the elements 42 being tilted during the travel of the conveyer 2 to position the carton for filling, sealing and ejecting operations. Specification 681,406, [Group XVII], is referred to.
Patent GB-868603-A (GB)
Title: Improvements in and relating to electrical indicating or measuring instruments
Inventor: TAYLOR GRAHAM ROSS
IPC: G01R19/00
Filed: 1958-10-24
Abstract: 868,603. Current and voltage measuring. ELECTRONIC INSTRUMENTS Ltd. Oct. 13, 1959 [Oct. 24, 1958], No. 34134/58. Class 37. In a measuring equipment for small unidirectional currents including an amplifier 11, Fig. 1, two reactive elements C1, C2, one of which, C2, is larger than the other, C1, are connected in series across the input of the amplifier, and the larger, C2, is connected with the meter 13 in the amplifier output circuit, the output current being proportional to the current or voltage to be measured and passing through the reactance C2 and the meter 13. A three-terminal arrangement in which one of the input terminals is commoned with one of the output terminals is described with reference to Fig. 2 (not shown) and an arrangement where the common terminal is earthed is described with reference to Fig. 5 (not shown). Relay contacts S2, S3, Fig. 3, are provided to discharge the condensers C1, C2, at regular intervals, or when the voltage across them reaches a predetermined level, and contact S1 opens the indicator circuit, condenser C3 ensuring the maintenance of the previous indication. In a modified arrangement, Fig. 6 (not shown), the discharge time of the condensers is reduced by a reverse charge change over arrangement. The use of chopper-type or vibrating capacitor-type amplifiers is suggested, and a D.C. transistor feedback amplifier is. described with reference to Fig. 7 (not shown). Component values are given. C1 may be provided by the input capacitance.