baber/WOPTO huggingface dataset:
Patent GB-914560-A (GB)
Title: Improved garbage disposal device
IPC: B65F3/04
Filed: 1960-05-13
Abstract: 914,560. Refuse vehicles; discharging dustbins. TALENTI, A. May 13, 1960 [Aug. 10, 1959], No. 16928/60. Class 78 (4). The usual sealing door 1 (Fig. 4) for the mouth of a dustbin tipped into a vehicle 11 is biased to its closed position by arms 17 (Fig. 2) mounted at each end of the shaft 2 of the door and each connected to a pair of rods 19 provided with biasing helical springs 23. The device is of the type in which the movement of the door 1 causes an inner door 6 (Fig. 4) to swing about an upper hinge 5 on the door 1 to open the lid of the bin; as shown, the movement of the door is effected by a pin-and-slot connection 15 to a link 14 connected to a shutter 8, 9 within which the lid 1 moves until stops 7 on the lid engage rubber blocks 13 on the cowling to cause the cowlings to rotate with the lid. The rods 19 (Fig. 2) slide within abutments 20 for the springs 23: a handle 21 permits the position of the abutments 22 to be altered so that the initial compression of the springs 23 may be reduced when loading is to be effected manually.
Patent GB-1352385-A (GB)
Title: Apparatus for casting refractory work pieces
IPC: B28B1/54
Filed: 1971-05-25
Abstract: 1352385 Moulding refractory materials L' ELECTRO-REFRACTAIRE 25 May 1971 [26 May 1970] 16974/71 Heading B5A A mould for casting articles from refractory material comprises hollow copper or steel sections 5 which can be cooled by the circulation of water through pipes 9 and 10, and whose radial position can be adjusted by hydraulic jacks 12. The mould also incorporates a central cooled column 2, and upper and lower graphite or metal closing members 1 and 15. In operation, the material is poured into the mould through an opening 26 in the member 15 to form a bladed component e.g. a pump rotor, Fig. 5, not shown. After annealing, the component can, if desired, be sawn or ruptured to form a number of plates or tiles 25. In Figs. 4 and 6 not shown, a disc (20) is placed in the aperture 26 to form weakened zones (21) between the blades of the component and a control hub to aid rupturing. The plates 25 in Figs. 7 and 8, not shown, are formed with a central hole (33), and those in Figs. 9, 10, not shown, incorporate a welding lug (36). The mould can be used to form partcylindrical plates, if the generatricis of the cylinders are parallel to the axes of movement of the sections 5.
Patent GB-698170-A (GB)
Title: Improvements in or relating to edge grinding particularly for forming bevelled edgeson articles such as ophthalmic lenses
IPC: B24B9/14
Filed: 1952-07-07
Abstract: 698,170. Edge grinding lenses. ABBEY, A. (American Optical Co.). July 7, 1952, No. 17081/52. Class 60. A tool for edge grinding lenses comprises an abrading wheel 16, Fig. 8, having a peripherally disposed V-groove shaped abrading surface 27 having both its opposed wall surfaces offset other than normal with respect to the axis of the wheel, and wherein lines drawn through the apex of the groove to divide it into substantially equal angles will define a cone having its apex substantially on the axis of the wheel. The wheel is clamped by a nut 25 and washer 24 against a collar 22 on a shaft 21 which is rotated by a shaft 17 and belt 18, Fig. 1. The lens 73 is clamped between two pads mounted on rotatable spindles 55, 58, Fig. 3, one of which is adapted to be axially displaced against spring pressure by a manually-operated helical cam device to allow insertion or removal of a lens. The spindles are carried by arms 41 pivotally connected by screws 43, Fig. 5, to a yoke 38 mounted on a vertical pivot 33. Movement about the latter pivot to maintain the curved edge of the lens in register with the groove in the tool is effected by a cam surface 90 and an adjustably positioned pin 91, relative movement between these last two members taking place in consequence of the movement of the lens towards and away from the tool. This movement is controlled by a template 75 mounted on the spindle 55 and adapted to co-operate with a shoe 78 which makes an electric contact 83, 84 when depressed. As grinding proceeds, the template descends with the lens until the shoe 78 is engaged and depressed whereupon an electric motor 54 is energized to rotate the lens through a shaft 53 and gears 52, 69 until the engagement of an unground portion of the lens with the tool lifts the template clear of the shoe. Alternatively, the lens may be rotated continuously. Adjustment of the pin 91 by means of a screw 96 enables the position of the bevel apex to be varied in relation to the front and rear surfaces of the lens. An adjustable weight 44 partly balances the weight of the arms 41 and the lens-holding assembly. A coolant or lubricant is directed on to the lens by a nozzle 101 supplied from a tank 99. Trueing.-To provide access to the wheel, the arms 41 are displaced about their pivots to a position to one side of the machine where they are supported by a bracket 125 which is raised to a vertical position about a pivot 126. A V- shaped trueing diamond 120, Fig. 13, supported by a rod 104 connected by a universal joint at one end to the base of the machine, is then lifted into engagement with the groove in the wheel and the rod 104 is moved to follow the contour of a template (not shown). The diamond is mounted in a slide 115 urged by a spring 117 into engagement with a calibrated screw cap 121 by means of which it may be adjusted in relation to the rod 104. Coolant is supplied through a bore 122 and passages 123 by transferring the connection from the nozzle 101.
Patent GB-1359253-A (GB)
Title: Devices for staring the amplitude of an electric signal
IPC: G11C27/00
Filed: 1972-04-13
Abstract: 1359253 Transistor analogue stores COMMISSARIAT A L'ENERGIE ATOMIQUE 13 April 1972 [22 April 1971] 17099/72 Heading H3T A storage capacitor 12<SP>1</SP> charged by a pulse input V E  through a diode 10<SP>1</SP>, receives also a current #i from a correction circuit T30 driven by the same input V E , in order to overcome the variable resistance of, and the resultant voltage across, the diode 10<SP>1</SP>. The input pulse V 1  is supplied to the diode 10<SP>1</SP> through T24 and T14<SP>1</SP>, and the circuit values are selected to produce a collector voltage swing across R16<SP>1</SP> of V E . The current-dependent voltage variations across D10<SP>1</SP> are reproduced across an identical diode 20 driven by a capacitor 22 equal to C12<SP>1</SP> and a collector resistor 26 equal to R16<SP>1</SP>. T30 derives from the voltage across D20, the correction current #i. A chain of substantially similar stages is cascaded (Fig. 6, not shown), with the circuit values of each being successively varied to produce a large storage time at the output of the last stage, by means of a large storage capacitor, and a short response time at the input to the first stage.
Patent GB-312821-A (GB)
Title: A new or improved printing telegraph receiver
IPC: H04L15/34
Filed: 1928-06-14
Abstract: 312,821. Cook, F. W. June 14, 1928. Type-printing telegraphs.-A printing telegraph receiver comprises a type-carrier 2 with associated stops, Fig. 4, means for placing a detent 5 into operative relation with successive sets of the stops, means responsive to the character of each signal element for operating the detent selectively, and means responsive to the successive selective operations of the detent for positioning the type carrier progressively during the arrival of a signal. The first incoming signal of a fiveunit code causes attraction of a non-polarized armature 22 and thus trips a ratchet clutch 13, 14 into engagement. A shaft 10 then rotates, in synchronism with the signals, a snail cam 7, which raises the escapement 5 step by step, and a notched cam 8, which releases the escapement for one blade, and thus one stop on the type wheel 2, after each step of the snail cam, provided a catch 24 is withdrawn from an extension on a lever 18 by the attraction of a polarized armature 23. A stop on the typewheel is thus released or not according to the polarity of the received signal, and, if released, the typewheel is arrested by the next stop in the concentric row to which the escapement has been raised. As each successive row of stops halves the angular permissible movement of the typewheel for the preceding row, any one of 32 characters is selected and brought into position over a printing-anvil 25. A cam, not shown, on a sleeve 9 actuates the anvil to print the character on a paper tape 26 just before the return of the escapement to normal, and the return of the printing-anvil moves the tape forward. The clutch detent automatically disengages after one revolution, and the escapement, dropping to the zero position, withdraws from the last engaging stop and allows the typewheel to return to the zero position where it is arrested by the single stop of the innermost row. A figure-shift device is fitted to the typewheel by carrying the printing-character on a separate ring which is free to move, relatively to the disc carrying the stops, a distance equivalent to a quarter of the distance between consecutive stops in the outermost row. To reduce the time interval between signals required for the typewheel to return to rest, the rows of stops may be carried on separate rings which mutually engage through locking-stops and the width of the escapement reduced to that of one row (Figs. 5-7, not shown). According to a modification, adapted for operation on the Morse-code, the printing- characters are arranged on the surface of a drum, the detent is withdrawn by a dash, which is distinguished from a dot by its length and from a space by its polarity, and the printing-anvil is actuated immediately after the receipt of a signal (Figs. 8-12, not shown).
Patent GB-760995-A (GB)
Title: Improvements in toothed-wheel drives for rolling crushers, rolling mills or the like
IPC: B02C4/42
Filed: 1954-06-11
Abstract: 760,995. Grinding-machines. WESTFALIA DINNENDAHL GROPPEL AKTGES. June 11, 1954 [June 13, 1953], No. 17241/54. Class 59 [Also in Group XXIV] Gearing between the fixed roller 2 and the movable roller 3 of a roller crusher comprises two intermeshing pinions 5 engaging gears 7, 6 respectively on the roll shafts. The pinions 5 are carried On an arm 4 which is supported about the shaft of the roll 3 and the engagement with the gear 6 is maintained by a cam surface 9 co-operating with a projection 8 onthe' arm 4. Proper mesh of the gearing during varying distances between the axes of the rolls 2, 3 is maintained.
Patent GB-169029-A (GB)
Title: Improvements in vests or the like for personal wear
IPC: A41F9/00
Filed: 1920-06-25
Abstract: 169,029. Bloomfield, W. June 25, 1920. Belts; waistcoats. -A belt or imitation vest comprises two separate strips of material A, D shaped at the front like the lower portion of an ordinary vest and provided with buttons and button-holes D, E and pockets F, and adjustably connected at the back by a buckle or the like C. Spring clips or the like G are provided at the back and front to engage the trousers or braces and prevent the vest from slipping down. A modification is described in the Provisional Specification in which the vest is made in one piece with an imitation front opening, or the vest may be stiffened for ladies wear.
Patent GB-1155245-A (GB)
Title: Method of Refining Glyoxal
IPC: C07C45/82
Filed: 1967-04-14
Abstract: 1,155,245. Refining glyoxal by electro-dialysis. DAICEL Ltd. April 14, 1967 [April 15, 1966], No.17251/67. Heading C7B. An impure aqueous solution of glyoxal, particularly obtained by oxidation of acetaldehyde with nitric acid, is refined by electro-dialysis, e.g. by continuously or intermittently feeding the solution into a diluent chamber and water into a concentrating chamber in an electro-dialysis cell. The cell is preferably provided with a plurality, e.g. eleven each, of cation and anion exchange membranes. The water in the concentrating and/ or electrode chambers preferably contains an electrolyte such as sodium chloride or sulphate or acetic acid. A carbon anode and steel cathode may be used. Prior to electro-dialysis, at least part of the volatile impurities e.g. formic or acetic acid in the glyoxal solution may be distilled away. Part of the impurities may also be removed in advance by removing water from the solution to make it a glyoxal hydrate polymer which is depolymerized to again make an aqueous solution, or the glyoxal may be acetalized as a tetralkyl acetal, rectified and then hydrolyzed; acid impurities may also be removed with CaCO 3  or treating the solution with an anion exchange resin, prior to electro-dialysis. The refined glyoxal solution may be finally treated with active carbon.
Patent GB-1260420-A (GB)
Title: Olefine polymerization process and catalyst
Inventor: HAGEMEYER HUGH JOHN JR
IPC: C08F10/00
Filed: 1969-04-02
Abstract: 1,260,420. Polymerization of α-olefins. EASTMAN KODAK CO. 2 April, 1969 [3 April, 1968], No. 17253/69. Heading C3P.  α-Olefines containing at least 3 carbon atoms or mixtures of said α-olefines with ethylene are polymerized to solid, high molecular weight polymers having a crystallinity of at least 70%, by contacting the monomer(s) at 140- 300‹ C. at a pressure of atmospheric to 2000 atm. with a polymerization catalyst comprising a mixture of (A) an organopolylithiumaluminium compound, preferably prepared by reacting lithium hydride or lithium alkyl with aluminium trialkyl and/or dialkyl aluminium hydride and (B) the α-form of TiCl 3  i.e. TiCl 3  prepared, by reduction of TiCl 4  with hydrogen, the inherent viscosity of the polymer being controlled while the catalytic activity is maintained by adding lithium alkyl or an aluminium alkyl and/or dialkylaluminium hydride to provide an effective lithium to aluminium mole ratio of from 0À25 : 1 to 4 : 1 in the catalyst, mixture. -Examples describe the production of polypropylene and of an ethylene-propylene block copolymer.
Patent GB-892989-A (GB)
Title: Improvements relating to and means for heating glass preparatory to delivery
Inventor: GELL PHILIP ANTHONY MAUNSELL
IPC: C03B5/24
Filed: 1958-05-30
Abstract: 892,989. Automatic resistance control systems. ELEMELT Ltd. June 1, 1959 [May 30, 1958], No. 17260/58. Drawings to Specification. Class 38 (4). [Also in Group XI] The subject-matter of this Specification is substantially identical with that of Specification 892,990, but the claims relate to a method and apparatus (see Group XI) for producing a desired isothermal distribution in a glass stream in the vicinity of the outlet of a glassfeeding furnace by variation and comparison of current density in adjacent segmental regions of the outlet(s) between companion pairs of electrodes. Specification 835,201 also is referred to.
Patent GB-126083-A (GB)
Title: Manufacture of Nitric Acid and Oxides of Nitrogen.
Inventor: MAXTED EDWARD BRADFORD
IPC: C01B21/26
Filed: 1916-12-04
Abstract: 126,083. Maxted, E. B., and Ridsdale, G. R. Dec. 4, 1916. Catalytic processes and apparatus.-The catalytic oxidation of ammonia to nitric acid or nitrogen oxides is effected by arranging a constant supply of heat of suitable temperature at every point of contact between the gases and the catalyst, followed by cooling the reaction gases as soon as they leave the catalyst. The gases may be passed through iron tubes of small bore, or through iron tubes which have been flattened to the form of a hollow tape, or between iron plates in loose contact or a short distance apart, the tubes &c. being externally heated, for instance by a flame or electrically, to a red heat, and the time of contact being a fraction of a second. Nickel or cobalt, or according to the Provisional Specification copper or platinum, may be used instead of iron, and the inner surfaces of the tubes &c. may be activated in any known manner, for instance by treating with a solution of copper, tungsten, cerium, thorium, bismuth, or lead nitrate, or according to the Provisional Specification by coupling with copper or silver. The tubes may be enclosed in sleeves of silica, porcelain, &c.
Patent GB-1101251-A (GB)
Title: Improvements in or relating to electric circuit arrangements for time division multiplex signalling
IPC: H04J3/04
Filed: 1966-04-21
Abstract: 1,101,251. Multiplex pulse signalling. SIEMENS A.G. 21 April, 1966 [22 April, 1965; 21 Jan., 1966], No. 17396/66. Heading H3T and H4L. In a time division multiplex system wherein a plurality of analogue signals are sampled in sequence by electronic sampling switches the resulting t.d.m. signal is supplied via a further electronic switch to a store having a high input impedance in relation to each of the signal channels (e.g. a pulse width modulator including a capacitor store) the said further switch being closed simultaneously with the closing of each of the sampling switches and being opened before the opening of each of the sampling switches. This reduces the distortion caused by residual voltages due to the use of electronic switches and arising particularly when companders are used. In one arrangement, Fig. 4, the input signal from each channel is supplied via a similar low-pass filter Ti and sampling switch AS to a common pulse width modulator MW which includes a compander. The signal samples are passed via the further switch S to charge rapidly a capacitor C2 (forming the store) via the baseemitter junction of a conducting transistor TS2, the switches S and S<SP>1</SP> being controlled by complementary pulse trains so that when one is open the other is closed. When the switch S<SP>1</SP> is closed and switch S open, the capacitor C2 is discharged via a time constant circuit i providing companding (details not given). During the discharging the potential at the base of transistor TS2 reverses so that the transistor becomes non-conducting, the duration modulated pulses being supplied via load resistor Re. It is stated that the duration modulated pulses may be converted into binary code in conventional manner by a counter which can also be used to control the time constant of the discharge circuit for C2. In a further arrangement, Fig. 5 (not shown), an impedance converter is included between the switch S and the store to provide a high input impedance for the store. The impedance converter may be combined with the switch S and arranged to act as an amplifier, Fig. 6. Transistors Tr1, Tr2 form a differential amplifier the signal samples being applied at X, the control pulses at Tp and the output taken at Y. Assuming the store connected to Y has been discharged, the base of Tr2 is at a low potential and the positive pulse at X renders Tr1 conductive and Tr2 non- conductive, Tr3 also is made conductive and transmits a pulse to the store via output Y. When the charge on the store and thus the potential Y reaches the potential of the pulses at X, Tr2 becomes conductive and due to the current gain of the transistors is driven far into the conductive state whilst the base current of Tr1 falls to approximately zero. Shortly before the end of the pulse at X the amplifier is blocked by the pulse at Tp.
Patent GB-545636-A (GB)
Title: An improvement in or relating to valves for gas meters of the dry type
IPC: G01F3/22
Filed: 1940-12-07
Abstract: 545,636. Valves for dry gas meters. JOHNSTON, H. Dec. 7, 1940, No. 17423. [Classes 54 and 135] A rotary disc valve for a dry gas meter comprises a valve seat having three narrow concentric seating surfaces a<SP>1</SP>, a<SP>2</SP>, a<SP>3</SP> joined by four radial ribs providing four inner ports leading to the four measuring chambers of the meter and four outer ports leading to a common outlet. The valve member which is continuously rotated by the meter mechanism acting through an arm jl has a segmental port i corresponding in area to one of the inner ports and diametrically opposed to the port i has a bridging passage divided by a curved rib to present areas corresponding to one inner and one outer port. The valve member may be 'formed with a narrow ridge surrounding the port and the mouth of the bridging passage. The valve member has a central spigot engaging a spring-supported ball housed in a recess in the valve seating. In a modification shown in Fig. 5 the valve member is formed with a lubricant chamber i<SP>4</SP> communicating with lubricating channels in the valve member and replenished through the hollow actuating spindle k<SP>j</SP>.
Patent GB-756892-A (GB)
Title: Improvements in low temperature gas rectification columns
IPC: B01D3/14
Filed: 1954-06-15
Abstract: 756,892. Cold separation of gas mixtures. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. June 15, 1954 [June 18, 1953], No. 17552/54. Class 8(2). The boiler 3 of a low temperature gas rectification column 1 is supplied with heat by an exchanger having a first portion within the boiler and a second portion externally thereof which serves to cool the gas mixture being fed to the column. The said first portion comprises concentric tubes 16 projecting up from the boiler bottom 4 and the upper open end of a carrier tube 5 projecting above the liquid level and passing through said bottom 4 and being surrounded by a heat insulating sheath 18. In operation air at atmospheric temperature and pressure is forced by a pump 23 through ports 19 and staggered apertures 15 in extension plates 12, 13, 14 of the carrier tube 5 and on which ice and solid carbon dioxide are deposited by virtue of the cooling effect of evaporated oxygen from the boiler 3 flowing through apertured plates 9 within the tube 5 and being discharged as product at an outlet 17. The so cooled air passes through a duct 22 to a bed of raschig rings 2 supplied with reflux nitrogen from a gas refrigerator as described in Specification 695,857 [Group XIII], the refrigerator being fed with nitrogen gas through a duct 24. The carrier tube 5 comprises sections 6, 7, 8 of differing thermal conductance and in a modification the carrier is of uniform conductance but the extensions differ in conductance. Specification 746,436 also is referred to.
Patent GB-229191-A (GB)
Title: Improvements relating to the spragging of colliery trams or other vehicles
IPC: B60T1/14
Filed: 1924-07-23
Abstract: 229,191. Neil, A., Jones, S., and Neil, D. July 23, 1924. Back struts.-Colliery trams &c. of the kind having a pivoted sprag B are provided with a spring catch F for retaining the sprag B in the inoperative position. A cord A connects the catch F to the catch of the preceding tram so that, if the main coupling breaks, the cord A is tightened and releases the catch F.
Patent GB-176065-A (GB)
Abstract: 176,065. LienzÚn, D. L., and Larsson, K. Nov. 4, 1920. Clutches, claw.-An electromagnetically controlled reversing clutch, for driving a toothed annulus 19 in either direction from a power shaft 27, comprises a pair of magnets MV, MH, with a common armature 45, 46 which extends over the polepiece of the magnet MV and under that of the magnet MH, so that if the magnet MV is energized the armature frame 34 is depressed against a spring 47, but if the magnet MH is energized the frame 34 is lifted. A pinion 36 on a shaft 35 is thus brought into engagement with one or other of two crown wheels 33 on the shaft 27, and a pinion 41 on the other end of the shaft 35 transmits power in one direction to the annulus 19.
Patent GB-717041-A (GB)
Title: Improvements relating to the treatment of commercially purified acrylonitrile to render the same colour stable
Filed: 1951-07-25
Abstract: Commercially purified acrylonitrile is treated to render the same colour-stable by a process which comprises adding water thereto until the water content is between 0.3 and 3 per cent by weight.  Samples of fresh, commercially purified acrylonitrile and the same containing from 0.5 to 3 per cent of water are stored in glass containers in diffuse daylight at room temperature and the intensities of the colours developed are determined by means of a spectrophotometer. Numbers corresponding to the intensities of the colours are set forth in Tables I-IV.