baber/WOPTO huggingface dataset:
Patent GB-1203500-A (GB)
Title: Motor driven tape dispenser
IPC: B65H35/00
Filed: 1968-07-05
Abstract: 1,203,500. Motor driven tape dispensers. BETTER PACKAGES Inc. 5 July, 1968 [7 July, 1967], No. 32234/68. Heading A4G. On manual depression of an actuating lever 84 of a motor driven tape dispenser from the full to the dotted line position Fig. 5 a roller 90 on a crank arm 88 carried by a shaft 86 to which lever 84 is keyed pivots a yoke 92 clockwise, Fig. 2, about a shaft 94 against a spring 96. Roller 90 moves over-centre with respect to yoke 92 and this maintains lever 84 depressed. Pivoting of yoke 92 moves a cutter 46, Fig. 2, upwardly so that an opening 46a therein is aligned with the feed line of the tape 34; a set-screw 100 moves a lower feed roller 42 into engagement with an upper motor driven feed roller 40 through levers 102, 108 and a spring 106; a stud 128 on yoke 92 moves down, and, through a block 130, Fig. 5, and stud 132 pivots a plate 140 anticlockwise, Fig. 5, about a motor driven shaft 79, so that a friction wheel 150, driven from shaft 79 through interchangeable speed gears 142-8, is brought into driving engagement with a measuring wheel 114; and block 130 depresses a roller 82 of a switch 80 to start the motor (68, Fig. 4). The motor drives through shaft 79, roller 40 to feed the tape 34 from a roll 24, Fig. 2 and wheel 114 clockwise, Fig. 5, so that a step 118 thereon moves away from a stop lever 120. Lever 120 is set by a hand nut (122, Fig. 6) to determine the amount of tape to be dispensed. After a predetermined amount of rotation of wheel 114, a roller 126 thereon engages end 84a of depressed lever 84 and returns it to its non-actuated position. Spring 96 pivots yoke 92 to its original position, block 130 thereby moving up and releasing roller 82 so that the switch 80 stops the motor; wheel 150 is moved away from wheel 114 which returns to its anti-clockwise position by a clock spring 116; cutter 46 moves down to cut the tape and roller 42 moves away from roller 40. The cutter includes a retractable shear 48, Fig. 2, and the cut tape is moistened by brushes 60. Switch 80 may be omitted, the motor being connected directly to the power source.
Patent GB-894045-A (GB)
Title: Stabilized chlorinated hydrocarbon solvent
IPC: C07C17/42
Filed: 1959-09-22
Abstract: A stabilized metal degreasing composition comprises (a) a chlorinated hydrocarbon solvent, particularly tri- or per-chlorethylene or methyl chloroform, and (b) 0,01-2% by weight of (a) of a condensation product of formaldehyde or acetaldehyde with a primary amine containing 1-3 carbon atoms (i.e. an alkyl-substituted hexahydrotriazine).  Such condensates may be produced in situ by condensing the aldehyde and amine together in the solvent at below 45 DEG  C. in equimolecular proportions and in such amounts that the concentrate obtained contains 10-50 g. of condensate per 100 ml. solvent, and thereafter diluting the concentrate with solvent to a condensate concentration of 0,01-2% by weight of the solvent.ALSO:Chlorinated hydrocarbon solvents, particularly tri- or per-chlorethylene or methyl chloroform, are stabilized by the incorporation of 0.01%-2% by weight of the solvent of a condensation product of formaldehyde or acetaldehyde with a primary amine containing 1-3 carbon atoms (i.e. an alkyl-substituted hexahydrotriazine).  Such condensates may be produced in situ by condensing the aldehyde and amine in equimolecular proportions in the solvent at below 45 DEG C. in such amounts that the concentrate obtained contains 10g.-50g. of condensate per 100 ml. solvent, and thereafter diluting the concentrate with solvent to a condensate concentration of 0.01%-2% by weight of the solvent.  In Example 1, equimolar amounts of 40% formaldehyde solution and isopropylamine are stirred together on an ice bath for 1 hour after which the upper condensate layer is separated, dried over potassium carbonate and stripped at 15 mm. pressure and 110 DEG C., the 1 : 3 : 5-triisopropyl hexahydrotriazine obtained being washed with water and dried again over potassium carbonate.  In Example 2, 1 mol amine (or an aqueous solution containing 1 mol) is added to 50 ml. trichloroethylene containing 1 mol aldehyde (or an aqueous solution containing 1 mol) with stirring at below 45 DEG C.  After 1 hour the aqueous layer is separated and extracted with trichlorethylene, the extracts being combined with the condensate layer.  The condensate solutions so obtained are those derived from (a) formaldehyde and ethylamine, (b) formaldehyde and methylamine, (c) formaldehyde and isopropylamine, and (d) acetaldehyde and ethylamine.
Patent GB-316488-A (GB)
Title: Improvements in or relating to automatic fire-extinguishing sprinkler systems and more particularly to "dry pipe" systems
IPC: A62C35/64
Filed: 1928-11-06
Abstract: 316,488. White, A. E., (Automatic Sprinkler Co. of America.). Nov. 6, 1928. Sprinklers, automatic.-In a sprinkler system of the dry pipe type, the air and water valves are connected by a pressure-multiplying lever system so that the size of the air valve may be reduced without increasing the air pressure. As shown, the water valve 17 is connected by a universal joint 25, 26 to a lever 30 which is connected to the air valve 19 by links 33 pivoted at 32, 34. In the ready position of the valves, the free end of the lever 30 is retained by a latching screw 35. The air-valve pivot 20, the pivots 34, 32, 26, and the latch 35 are relatively so arranged that the lever system produces a multiplying effect of four to one. The air valve is made somewhat larger than the water valve so that it will yield when the water pressure exceeds the air pressure by more than six to one. When this pressure ratio is exceeded, the water valve lifts at one, side, the latch 35 acting as a fulcrum. The air valve then turns on its pivot 20, withdrawing the end of the lever 30 from the latch 35, when the valves are free to open together. The valves are prevented from reclosing by a latch 48. The system is provided with a drain pipe 37 for the space between the valves, a drain 52 for the air side, and a drain 42 for the water side. Air is forced through the pipe 44.
Patent GB-446435-A (GB)
Title: Improvements in the manufacture and production of mixtures of nitrogen and hydrogen practically free from oxygen and oxides of nitrogen and apparatus therefor
IPC: C01B3/00
Filed: 1934-11-10
Abstract: <PICT:0446435/III/1> Mixtures of nitrogen and hydrogen, free from oxides of nitrogen, are obtained by the catalytic combustion of ammonia with less than 0,75 part by volume of oxygen (as such, or in the form of air or other gas mixture) for each volume of ammonia, the reaction being carried out in the presence of metals of the iron group or alloys containing them.  The catalysts are preferably used in the form of wires, nets or turnings, e.g. nets of nickel wire, and the working temperature is preferably between 800 and 1250 DEG  C. By regulating the amount of air, the proportions of nitrogen and hydrogen in the resulting gas mixture may be varied, e.g. by using the maximum amount of air, a gas mixture poor in hydrogen and rich in nitrogen is obtained.  By using oxygen, gas mixtures containing from 68--70 per cent of hydrogen may be obtained.  The reactants are preferably preheated by contact with the reaction gases before meeting the catalyst According to examples: (1) A mixture of 24 cubic m. or air and 20 cubic m. of ammonia are led per hour through the inlet a into the cap h flanged to pipe b.  The internal diameter of this pipe is 10 cm., but it is widened below the cap to 20 cm., the wide portion containing a ceramic tube i bearing a number of nickel wire nets c.  This catalyst is heated to the ignition temperature of the gas after which the reaction proceeds by itself, at about 900 DEG C.  The reaction mixture passes through container d partly filled with water to absorb unconverted ammonia and passes up through pipe e, the lower portion of which contains filler bodies, such as Raschig rings.  Pipes b and e are both surrounded by water jackets g to cool the reaction gases. About 49 cubic m. per hour of a mixture of 40,4 per cent hydrogen and 59,6 per cent nitrogen is obtained.  A mixture of 24 cubic m. of air and 10 cubic m. of ammonia burnt at 1100 DEG C., gives a mixture containing 17 per cent hydrogen and 83 per cent nitrogen; (2) In the above apparatus, the nickel nets are replaced by six wire nets of a nickel-iron-chromium alloy, having 260 meshes per sq. cm. 16 cubic m. of ammonia and 50 cubic m. of air are passed through per hour, giving a gas mixture containing 6,2 per cent of hydrogen.  Part of this mixture is returned after cooling to the inflowing gases to prevent any temperature increase above about 1150 DEG  C.
Patent GB-846373-A (GB)
Title: Improvements in or relating to shaft furnace charging devices
IPC: F23K3/06
Filed: 1958-10-10
Abstract: 846,373. Charging shaft furnaces. T. AN. TESCH A.B. Oct. 10, 1958 [Oct. 15, 1957], No. 32440/58. Class 51 (2). In shaft furnace charging apparatus of the type comprising two superposed hoppers with associated bell valves, the lower hopper B is discharged by an upper bell 12 which is raised inside the hopper and by a larger lower bell 13 which makes a seal with the lower edge of the hopper opening and is lowered into different positions to co-operate with concentric frustoconical charge distributers 20, 22. With bell 13 in position 13a stock slides over distributer 20 to the periphery of the shaft, in position 13b over distributer 22 to an intermediate position, and in position 13c over the bell itself to an inner position. The upper hopper C is rotated on rolls 6 by a motor 2 through gearing 3, 4, 5 and is discharged by bell 7. In a modification, Fig. 3, the lower bell 13 is associated with frustoconical charge distributer 23 having inwardly disposed, spaced baffles 24. With the bell in position 13d stock slides over the distributer to the periphery of the shaft, and in position 13e part of the stock slides over the bell to an intermediate position the remainder passing to an inner position over the baffles 24.
Patent GB-937166-A (GB)
Title: Process for the production of mesityl oxide peroxide
Inventor: RIECHE ALFRED
IPC: C07D317/04
Filed: 1960-09-21
Abstract: Mesityl oxide peroxide, i.e bis-3,5,5-trimethyl-1,2-dioxolanyl peroxide, is made by reacting diacetonyl alcohol with hydrogen peroxide in acidic medium.  In an example, the reactants are mixed with sulphuric acid and the mixture is left to stand for 65 hours and crystals of mesityl oxide peroxide separate out.
Patent GB-668756-A (GB)
Title: An improved automatic gain control system for radio receivers
IPC: H04N5/53
Filed: 1949-12-19
Abstract: 668,756. Automatic gain control. RADIO CORPORATION OF AMERICA. Dec. 19, 1949 [Dec. 18, 1948; Dec. 29, 1948], Nos. 32545/49 and 32546/49. Class 40 (v). In an automatic gain control system for a television receiver, line synchronizing impulses are applied in a positive sense to the anode of a rectifier comprising a triode 114, by means of an additional winding 108 on the line output transformer. The cathode is biased from a positive source by means of a potentiometer 118 so that conduction does not occur unless the grid is also driven positive. The grid is directly connected to the anode of a D.C. coupled video stage 30, at which the synchronizing components in the demodulated signal are positive-going and produce conduction in the valve 114 proportional to the strength of the signal. The rectified anode current is integrated by a resistance/condenser network 126, 128 and is used to control the gain of prior stages 10 in the receiver. In a modification, Fig. 2 (not shown), the additional transformer winding 108 is dispensed with, the anode potential of the valve 114 being derived from a potentiometer across the primary winding, while in another embodiment, Fig. 3 (not shown), the control potential is derived from the cathode circuit of the valve 114, a diode " clamp " being utilized to prevent the application of positive potentials to the gain control line. According to the Specification as open to inspection under Sect. 91, the arrangement may also be utilized in a broadcast receiver, the anode potential of the valve 114 being derived from A.C. mains or an oscillator. This subjectmatter does not appear in the Specification as accepted.
Patent GB-649587-A (GB)
Title: Passive impedance matching network
IPC: H01P5/12
Filed: 1947-12-10
Abstract: 649,587. Distributing music &c. FARNSWORTH TELEVISION & RADIO CORPORATION. Dec. 10, 1947, No. 32566. Convention date, Nov. 8, 1945. [Class 40 (iv)] [Also in Group XL (b)] A distribution system for highfrequency energy comprises an input terminal 4 connected to a number of impedance inverters 6 and 7, each of which is connected to a group of transmission lines in parallel, such as 10, 11, 12 and 13, 14, 15, the total impedance of a group of lines as seen from its associated inverter multiplied by the impedance presented to the input terminal being chosen to be substantially equal to the squared characteristic impedance of the inverters divided by the number, of the inverters. This network serves to link a master aerial 1 to a number of receivers 2 and 8, producing matching and avoiding reflections. If the receiver of a particular line is not in operation the line is terminated by a resistor 16 or 17 of impedance equal to a receiver. The system is intended chiefly for use in television reception. Specification 615,585 is referred to.
Patent GB-1135269-A (GB)
Title: Improvements in or relating to systems for controlling electrical power
Inventor: JOHNSTON JAMES STEWART
IPC: G05F1/45
Filed: 1966-07-20
Abstract: 1,135,269. Digital electric calculating apparatus; selective signalling. ROSEMOUNT ENG. CO. Ltd. 19 July, 1967 [20 July, 1966], No. 32645/66. Headings G4A and G4H. [Also in Divisions G3 and H2] An automatic controller includes an arrangement of gates 24-28, Fig. 1, opened in accordance with the controlling variable which is presented in pure binary form (modifications to include binary-coded decimal are discussed), the gates also receiving pulse trains derived from the stages of a binary counter 16 fed by clockpulses at 100 c/s. derived from the main supply, whereby the merged output pulse train from the gates has an average frequency corresponding to the magnitude of the controlling variable. These pulses control a full-wave rectifier 12 which, in turn, controls the power in a load 10. Integral and derivative control can be added to the proportional control by also applying to the rectifier 12 pulses whose average frequency represents the integral with respect to time of the magnitude of the controlling variable, this integral being obtained by counting the pulses produced by the gates 24-28, and pulses whose average frequency represents the rate of change of the controlling variable. An arrangement providing proportional and integral control, in which the controlling variable includes a sign bit, is shown in Fig. 2. Gates 48-51 are controlled by the magnitude of the controlling variable, and gate 46 is controlled, via an inverter 45, by the sign bit. For negative values the sign bit is " 1 " and is negatively weighted, and the magnitude bits are replaced by their ones complement. The output pulses from the gates on leads 76 and 77, which are respectively, negatively and positively weighted, represent the proportional control component and are combined in an adder 78 before passing to the rectifier 12. These pulses (76, 77) also pass to a reversible counter 52 whose output will thus represent the integral with respect to time of the controlling input variable. The output of the integrating counter 52 is converted, by gates 65-69 into a pulse train 75 having a corresponding average frequency which is also passed to the adder 78 to be combined with the proportional control pulses before controlling the rectifier 12. A suitable arrangement for the adder 78, designed to ensure that no pulses are lost, is described (Fig. 3, not shown). In a further embodiment (Fig. 4, not shown) derivative control is added to the proportional control.
Patent GB-326524-A (GB)
Abstract: 326,524. Macdonald, M. Nov. 13, 1928. Tickets and tokens, holding. - A ticket holder comprises a box adapted to receive a plurality of pads of tickets, a shaft rotatably mounted on the box, a plurality of pad engaging elements distributed along the shaft, and means connecting the elements to the shaft whereby rotation of the shaft causes movement of said elements to cause a selective indentation or mark to be made on a. ticket when removed from a pad. A box 11 is shaped to receive pads of tickets 35, each pad corresponding to a different fare, which are retained by the latch members 32 and which are torn off against the sharp edge 31 of the box. For the purpose of checking the tickets the issued box-like elements 42 are mounted on a tube 17 which is in threaded engagement at one end 18 with a shaft 15 rotatably mounted, by means of the knurled knob 19, on the box 11. Inside the box-like elements 42 and around the tube 17 are resilient members 45 held at one end 49 in contact with the box 11 by leaf springs 50 and turned up at the other end 48 to form a sharp point. The tickets 56 are severed, by tearing against the sharp edge 31, along the line 54 and are simultaneously notched at 56<1> by the pointed member 48. The stubs 55 are retained in the box 11 for checking purposes. For notching tickets at a different point corresponding to a different fare zone the boxlike elements can be moved relatively to the pads of tickets by turning the knob 19. Any particular one of the box-like elements, which are held to the tube 17 by friction, can be shifted relatively to the others by manual movement. The box 11 can be supported on a bracket 59 which can be clamped by means of the resilient member 57 and nut 61 to a suitable post.
Patent GB-506400-A (GB)
Title: Improvements in or relating to the combustion chambers of internal combustion engines
IPC: F02B23/08
Filed: 1937-11-26
Abstract: 506,400. Pistons. VAUXHALL MOTORS, Ltd., and TAUB, A. Nov. 26, 1937, Nos. 32665/37, 5983/38, and 17920/38. [Class 122 (i)] [Also in Group XXVII] Ribs P<3> on the underside of an internalcombustion engine piston are cooled by lubricant issuing from a duct J in the connecting rod.
Patent GB-1439013-A (GB)
Title: Light control device
IPC: F21V5/00
Filed: 1973-07-09
Abstract: 1439013 Refracting panel ATOR CORP Ltd 9 July 1973 [24 July 1972] 32697/73 Heading F4R A refractory panel of transparent material has a first side 20 for receiving light provided with a grid of clear areas and light-diffusing areas and a second side 10 of refractive formations. The grid pattern may be regular or non- regular and formed by moulding, cutting, painting or etching or by sticking a film bearing the grid on a surface of the panel (Fig. 2, not shown). The refractive formations may be lenticular or prismatic or both whilst the panel may be of glass or plastics.
Patent GB-1161845-A (GB)
Title: Improvements in and relating to Continuous Casting Machines.
IPC: B22D11/06
Filed: 1967-07-17
Abstract: 1,161,845. Continuous casting-machines. SOUTHWIRE CO. 17 July, 1967 [18 July, 1966], No. 32744/67. Heading B3F. In a rotating grooved wheel type of continuous casting machine the closing band 11 is cooled by a means R that comprises a mould entry portion cooling device 30 that directs coolant in the direction of movement of the band 11 and along its surface, and further cooling devices 31, 32 that direct coolant on to the band 11 in a direction perpendicular to its movement, the devices together comprising the " initial " cooling means of the molten metal up to the point C of the moving mould M. The cooling device 30 is wedge shaped to enable it to be fitted close to the portion of the band 11 adjacent the entry portion A of the mould. The devices 30, 31, 32 are fed by pipes 48, 34 that include independently adjustable valves 46, 47 and 50. The cooling device 30 may be used on its own to pre-cool the band 11 before molten metal is poured, during which a main valve 51 is closed and a by-pass line 53 and valve 54 allow a low-pressure flow. The machine also includes means 19-22 for cooling the inside 18 of the rotating wheel 13 and means 25, 26 for cooling the sides 24 of the said wheel.
Patent GB-161244-A (GB)
Title: Improved method of and means for use in the manufacture of ammonia
IPC: C01C1/00
Filed: 1919-12-31
Abstract: In stills for treating ammoniacal liquor to separate ammonia, which is used to form ammonium sulphate, in which the liquor is passed down a primary still to separate sulphuretted hydrogen and carbon dioxide, then into a liming chamber and through a final still, a portion of the vapours is withdrawn from the liming chamber and passed through a reflux condenser to separate water and through an ordinary condenser to obtain a concentrated solution of ammonia which may be used to neutralize free acid in ammonium sulphate.  Reference has been directed by the Comptroller to Specification 156,170.
Patent GB-267252-A (GB)
Title: Improvements in or relating to brush holders for dynamo electric machines
IPC: H01R39/38
Filed: 1925-12-30
Abstract: 267,252. Peebles & Co., Ltd., B., and Brookhouse, F. G. Dec. 30, 1925. Brush-holders.-A brushholder for a divided brush comprises a head D in which the brush parts A, A<1> are slidably mounted under the pressure of separate auxiliary springs E housed in the head, an adjustable main spring G being located between the brush bracket K and the top D<1> of the head. The springs E, G are contained in hollow stems C, F.
Patent GB-418262-A (GB)
Title: Improvements relating to the printing of animal or cellulosic fibres
Filed: 1933-11-24
Abstract: Printing.--Cellulosic or animal fibres are printed with metalliferous dyestuffs with the aid of a substance of the general formula <FORM:0418262/IV/1> wherein x represents O, S or NH and y represents NH2 or NH--CO--NH2.  Specified substances are urea, thiourea, guanidine and biuret.  Suitable metalliferous dyestuffs are the compounds of chromium, copper, nickel, cobalt, titanium, vanadium, manganese or iron with azo dyestuffs and the chromium compounds of anthraquinone derivatives or of triarylmethane dyestuffs.  The resulting prints are fuller and better fixed than those obtained without the aid of the specified substance.  The following examples are specified.  (1) A woollen fabric, chlorinated or not, is printed with an aqueous paste containing the chromiferous dyestuff from the azo dye obtained from nitrated 1 : 2-diazonaphthol-4-sulphonic acid and b -naphthol, British gum and urea, with or without a chrome mordant such as chromium acetate, and the material is dried, steamed for 1 hour and rinsed to obtain a fast deep black print.  (2) Combed sliver is printed with an aqueous paste containing the chromiferous dyestuff from the azo dye, 3-amino-4-oxybenzenesulphamide --> 1 - (3<1> - sulphamido) - phenyl - 3 - methyl - 5 - pyrazolone, British gum, glycerine, chromium acetate and urea, and the material is dried, steamed for 1 hour and rinsed to obtain a fast orange print.  (3) Loaded or unloaded silk or viscose artificial silk is printed with an aqueous paste containing the chromiferous dyestuff from the azo dye, 2-aminophenol-4 : 6-disulphonic acid --> 2 : 4-dioxyquinoline, British gum, glycerine and urea, and the material is dried, steamed for \ba3/4\be--1 hour and rinsed to obtain a fast red print.  (4) A mixture of equal parts by weight of urea and the chromiferous dyestuff from the azo dye, 2-aminophenol-4 : 6-disulphonic acid --> 1 - phenyl - 3 - methyl - 5 - pyrazolone, is incorporated with a thickener to obtain a printing paste which, when applied and steamed, gives well fixed orange prints.  Specifications 318,469, [Class 2 (iii)], 387,297, and 398,944 are referred to.  The Specification as open to inspection under Sect. 91 comprises also a further example in which a woollen material is printed with an aqueous paste containing urea, the chromiferous dyestuff of (4), British gum and glycerine and the material is dried, steamed for \ba3/4\be--1 hour and rinsed to obtain a fast orange print. This subject-matter does not appear in the Specification as accepted.