baber/WOPTO huggingface dataset:
Patent GB-614216-A (GB)
Title: Improvements in or relating to electronic control devices
IPC: B63C9/00
Filed: 1946-07-09
Abstract: 614,216. Electric fish-barriers. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. July 9, 1946. No. 20474. Convention date, July 14, 1945. [Class 48] [Also in Group XL (c)] In a circuit for supplying large current pulses to a load such as an electric fish barrier, the load is connected in series with a periodically conducting ignitron across a capacitor which is gradually charged through a device which is momentarily blocked when the ignitron fires to allow the latter to de-ionise. Pulse-forming circuit.-As shown, a capacitor 17 is charged through rectifiers 19 and resistor 23 from the three-phase supply and periodically discharged through load 29, comprising two electrodes suitably disposed in a water course, in series with an ignitron 33 which is fired by connecting its trigger electrode in the cathode circuit of a thyratron 39 fired when the capacitor voltage reaches a predetermined value by applying a portion of it from a potentiometer 55 to the grid of the thyratron. Rectifier blocking circuit.-To allow the ignitron to de-ionise after the discharge of capacitor 17 the rectifiers are blocked when the ignitron is triggered, this being done by applying the pulse appearing at the anode of the triggering thyratron to the grid of another thyratron 75 through a transformer 101, causing it to fire and take current from a source 87, thus producing a potential drop across a resistor 65 so connected in the grid circuits of the rectifiers 19 that the grid potentials drop and block the rectifiers. The potential drop across resistor 65 also causes a capacitor 79 in the cathode circuit of a second thyratron and a capacitor 117 in the grid circuit of this thyratron to charge until the voltage across capacitor 117 is sufficient to cause thyratron 77 to fire and extinguish thyratron 75 by lowering its anode-cathode potential, so that the circuit is restored to its original condition and the rectifiers conduct again. The time constant of capacitor 117 and the adjustable resistor 119 through which it charges determines the length of the period during which the rectifiers are blocked. If the ignitron does not become deionised before the rectifiers are unblocked, or if the ignitron fails to fire so that the triggering thyratron remains permanently conductive, triggering pulses will cease to be fed to thyratron 75. In order to prevent the system from stopping when one of these events occurs, thyratron 75 is arranged to fire of its own accord by arranging that a capacitor 105 in its grid circuit charges through a variable resistor 108 when thyratron 77 is conducting, reducing the negative bias on the valve and eventually causing it to fire. Rectifiers 107 and 121 are so connected across the resistors 108 and 119 that capacitors 105 and 117 are rapidly discharged when the charging voltages are removed. If the rectifiers have suitable back resistances the resistors may be omitted.
Patent GB-597018-A (GB)
Title: Improvements in and relating to building blocks
IPC: E04B2/28
Filed: 1946-04-10
Abstract: 597,018. Building-blocks. FELL, C. A. April 10, 1946, No. 20516/45. [Class 87(i)] A building-block 1 is provided with a wide recess 2 in the upper surface which, with a grouting groove 3, extends across the whole length or nearly the whole length of the block. The bottom surface of the block is plane and is provided with a grouting groove 3b. In an ordinary block, end grooves 3a are provided for grouting which interconnect the grooves 3 and 3b, but in an end block one of the grooves 3a is omitted. The edges of the blocks may be chamfered to facilitate jointing.
Patent GB-952068-A (GB)
Title: Improvements in or relating to pyrimidine dyestuffs
Inventor: BENZ JAKOB
IPC: C09B62/24
Filed: 1960-06-10
Abstract: 2-aminobenzene-sulphonic acid N-trichloropyrimidylamide is made by catalytic hydrogenation of 2-nitro-benzene-sulphonic acid N-trichloro-pyrimidylamide which is obtained by condensing 2-nitrobenzene-sulphonamide with 2:4:5:6-tetrachloropyrimidine.ALSO:The invention comprises organic dyes which contain at least one group of formula <FORM:0952068/C3/1> where each X is hydrogen or a substituent and R is hydrogen, alkyl, hydroxyalkyl, alkoxyalkyl or acyl.  The dyes may be of the monoazo, polyazo or metallized azo, anthraquinone, phthalocyanine, triphenylmethane, nitro or dioxazine series.  Substituents specified for X are halogen, methyl, nitro and carbomethoxy. The dyes are made by condensing an organic dye containing a -SO2-NHR- group with a pyrimidine of the formula <FORM:0952068/C3/2> by condensing an organic dyestuff sulphony1 halide with a pyrimidine of the formula <FORM:0952068/C3/3> or, in the case of azo dyes, by condensing pyrimidine derivatives of the formula II or III above with a diazo component or a coupling component and coupling these with coupling or diazo components respectively.  Examples are given.  The dyes dye, pad and print wool, silk, nylon and leather from acid, neutral or weakly alkaline media and cellulose fibres in an alkaline medium.
Patent GB-658320-A (GB)
Title: Improvements in elastic girdle trunks for men
IPC: A41B9/02
Filed: 1949-08-08
Abstract: 658,320. Pants for personal wear. ROUSSEL, Ltd., J. (Chaussonnaire, P.). Aug. 8, 1949, No. 20551. [Class 141] Girdle trunks of the type formed from a single piece of laterally stretchable material with a central portion 3 having inwardly curved d edges 6 adapted to form the crutch and two rectangular end portions 1, 2 offering greater resistance to extension than the central portion, is characterized by the provision of a longitudinal dart 5 which is slit for part of its length to form two overlapping flaps 7. To complete the trunks the side edges of the end portions 1, 2 are seamed and may be reinforced with braid. The edges 6 may be bound with strips of elastic and the flaps 7 provided with a facing.
Patent GB-1178264-A (GB)
Title: Condensation of Vapour.
IPC: H01M8/04119
Filed: 1967-05-03
Abstract: 1,178,264. Condensation of vapours. VARTA A.G. 3 May, 1967 [6 May, 1966], No. 20621/67. Heading B1B. [Also in Division H1] Condensation of water-vapour entrained in a gas, such as the effluent gas from a battery of oxygen-hydrogen fuel cells, is effected by passing the vapour-laden gas through chamber 2 in contact with one surface of a heatconductive porous membrane 4 whose opposite surface is in contact with cooled condensate in chamber 5 whereby the membrane is maintained at a temperature below the dewpoint of the water-vapour so that it condenses on the surface of the membrane, and maintaining the pressure of the gas such that the condensate is pressed through the membrane into chamber 5, being discharged through line 6. The porous membrane 4 may be made of sintered nickel. In the condenser shown in Fig. 1, the condensate in chamber 5 is cooled by passing water through chamber 9 which is separated from chamber 5 by heat-conducting, non-porous wall 8. In the condenser shown in Fig. 3, the condensate in chamber 5 is cooled by evaporation of condensate from porous plates 17 which are connected by metallic heat conductors 18 with plate 11. The cooling effect can be increased by circulating air by means of a fan. The condensation of organic solvent vapours may also be effected using such a porous membrane system.
Patent GB-438714-A (GB)
Title: Improvements relating to bib-overalls
IPC: A41D13/02
Filed: 1935-07-20
Abstract: 438,714. Bib-overalls. MEIKLEJOHN, N. M., 99, Maxwell Street, Glasgow. July 20, 1935, No. 20689. [Class 141] A bib-overall comprises trousers 1 with an integral upward extension 2 at the front of the body, the extension 2 being provided with an opening 3 extending from the top thereof to the trousers fork, and adapted to be closed by means of any suitable fasteners, e.g. buttons and buttonholes or a sliding fastener. Shoulder straps 6 are stitched to the back of the garment, and are secured to the extension 2 either permanently or semi-permanently, as shown.
Patent GB-1212375-A (GB)
Title: Push-button dispensers
IPC: B05B7/24
Filed: 1967-11-17
Abstract: 1,212,375. Spray producers. J. R. GEIGY A.G. 17 Nov., 1967 [19 Sept., 1967], No. 20696/70. Divided out of 1,212,373. Heading B2F. An aerosol dispenser comprising a propellant reservoir 43 surrounded by a container for the product to be dispensed, both fastened to a mounting 2, a push button 8 containing a spray nozzle 9 and having an associated tubular stem 7 which allows the product and propellant to travel to the nozzle and is slidingly arranged in a central passage 6 in the body 2 of the mounting, has an obturator for the propellant path a gasket 15 fitted in a recess 65 in the body of the mounting which recess is a part of the central passage directed towards the propellant reservoir, the reservoir having a neck 69 attached to a peripheral zone 68 of the body outside the recess and the gasket being secured in the recess by a fastening ring 66 a peripheral portion 71 of which ring is fastened between the neck of the reservoir and the body of the mounting. The ring may be formed integrally with the neck of the reservoir.
Patent GB-794357-A (GB)
Title: Signal modifying converter
IPC: G06F3/00
Filed: 1955-07-18
Abstract: 794,357. Photo-electric signal modifying apparatus; copying telegraphy. FAIRCHILD CAMERA & INSTRUMENT CORPORATION. July 18, 1955 [Dec. 14, 1954], No. 20698/55. Class 40 (3). Apparatus for providing a signal output which is a function (possibly a complex function) of a signal input comprises a cathode-ray tube 15 on the screen of which is generated visible scans positioned in accordance with the amplitude of the input signal, a viewing photo-electric reproducer 30 producing the output signal and a mask 34 placed over the screen of the tube 15 and having an aperture 36 so shaped as to produce the desired functional relationship. Masks with differently-shaped apertures may be provided so that a variety of functional relationships can be readily obtained. As described, the apparatus is used in connection with a facsimile system, a scanning device 10 producing a signal varying in amplitude in accordance with the picture element being scanned. This signal is used to modulate the carrier frequency from generator 12 at 11 and the modulated signal applied to the horizontal deflection system of the cathode-ray tube. The unmodulated signal from the generator is fed to the vertical deflection system and also to multi-vibrator 29 to produce a square waveform used to blank out the return trace. The beam origin is biased to a position 40 (Fig. 2A) outside the limits of the screen and the angle of the beam excursion 41 is dependent on the amplitude of the input signal, zero input giving a vertical beam excursion. The stepped mask shown in Fig. 2A gives a stepby-step function between the input and output; other masks can, of course, have different shapes (e.g. Figs. 2B and 2C, both not shown). Light passing through the screen is directed by lens 31 to light-sensitive device 30 whose output may be fed to a reproducing engraving device scanned in synchronism with device 10. In a modification (Fig. 5, not shown) the vertical deflection system of the cathode-ray tube is not fed directly from the generator 12 but via a multi-vibrator triggered to give a pulse commencing at each wave peak so that the display comprises a vertical trace whose horizontal positioning is dependent on the input signal amplitude. The shape of the aperture in the mask used will differ from that used in the previous arrangement for the same function but can readily be determined. A description of how apparatus according to the invention can be constructed with a number of masks mounted in windows round a manually rotatable disc so that any one of them can be readily placed in front of the screen of tube 15 is given with reference to Figs. 8 and 9 (both not shown). In this construction a viewing device is provided on the front of the housing so that the operator can observe the traces on the screen through the operative mask. Specification 692,349 is referred to.
Patent GB-1340923-A (GB)
Title: Headsets
IPC: A61F11/14
Filed: 1971-04-19
Abstract: 1340923 Headsets AMERICAN OPTICAL CORP 19 April 1971 [12 Feb 1970] 20755/71 Heading H4J [Also in Divisions A3 and B5] A headset (Fig. 1) comprises a pair of earcups 14 formed of rigid plastics material each connected to a flexible headband 12 by a stud 22 having an enlarged spherical end 22a fitting within a socket 25 in an earcup 14. The socket 25 firmly engages the spherical end 22a (Fig. 3) and friction has to be overcome before there is smooth relative movement between the earcup 14 and stud 22. In manufacture the stud 22 is held so that its spherical end 22a projects into the cavity of a two-part mould (Fig. 7, not shown). Plastics material is injected into the mould to form the earcup 14. The plastics material may be nylon (which may be impregnated with fibre glass), acetal resin, P.T.F.E., polyethylene or A.B.S. The headset may be a stereo or communications headset. An annular recess 27 permits limited angular movement of the headset in any direction from its centered position. The headband 12 has at each end an elongate slot 38 (Fig. 4). Two washers 30, 32 are provided. Washer 30 has a rib 30a extending through the slot 38 into an elongate recess 32a in the washer 32. An adjustable nut 34 and spring washer 40 prevent unwanted sliding action between the headband 12 and earpiece 14. A pin 42 prevents rotation between washer 32 and stud 22. In a simplified embodiment (Figs. 5, 6, not shown) the flexible headband is spoon-shaped at each end and one end of a stud is welded, riveted or peened to each spoon-shaped end. The other end of the stud is of spherical shape to seat within a socket in an earpiece. The headband is in two slidably related semi-circular halves.
Patent GB-983714-A (GB)
Title: An improved crank pin grinding machine
Inventor: SAXBY JOHN
IPC: B24B5/42
Filed: 1962-05-30
Abstract: 983,714. Grinding crank-pins. MIRRLESS NATIONAL Ltd. June 19, 1963 [May 30, 1962], No. 20764/62. Heading B3D. A machine for grinding a crankpin of a crank-shaft in situ in its engine bearings comprises means adapted to support and fixedly secure a housing for a generally annular rotor, which is adapted to be rotatably mounted therein, in such a manner that said rotor is disposed coaxially about said crank-pin, at least one grinding tool mounted on said rotor and adapted to engage operatively the peripheral surface of said crankpin, means for rotating said rotor within said housing whereby said grinding tool is carried around said crank-pin, means for driving said grinding tool, and means for traversing said grinding tool axially with respect to said rotor and over said crank-pin. A machine for grinding the crank-pin P comprises an annular housing 10 formed in halves 10a, 10b secured together by bolts 17. The half 10a is slidably supported between arms 14 having brackets 16 bolted, over the journals J, to the bearing blocks B from which the upper caps have been removed. The half 10a is vertically adjustable relative to the arms 14 by setscrews 29, and secured in adjusted position by bolts 15. A rotor 11 formed in two parts 11a, 11b secured together by bolts is rotatable within the housing 10, having on its outer rim inclined faces 18 engaging mating surfaces on the inside of the housing. The rotor 11 has a peripheral worm thread 19 engaging a worm 20 located in the housing half 10a and driven through a flexible coupling by a motor remote from the machine whereby the rotor 11 is rotated about the crank-pin P within the housing. The worm may be adapted to disengage automatically from the worm thread under excessive load. The rotor part 11b is a three-quarter sector and carries a 3-phase electric motor 13 supplied through slip-rings 28 arranged around the periphery of the rotor 11 and brushes secured in the housing 10. The motor 13 drives, through a flexible coupling 24, a grinding tool 12 carried by the rotor part 11a, which is a quarter sector. The grinding tool 12 comprises a grinding wheel 22 on a spindle in bearings in a casing 23 carried on a slideway 25, being inched therealong in response to actuation of a ratchet wheel 26 by a fixed pawl 27 carried by the housing 10, on each complete revolution of the rotor 11, whereby the grinding wheel is inched axially along the crank-pin P throughout the grinding operation. Micrometer gauges 30 are provided for ensuring coaxial alignment and for measuring the diameter of the crank-pin at any stage of the operation.
Patent GB-584990-A (GB)
Title: Improvements in the shaping of rubber articles
IPC: B29C33/76
Filed: 1944-10-25
Abstract: A wax composition comprises "Carbowax" (polymerized ethylene oxide) with triethylene glycol as a thinner.ALSO:A paste of a water-soluble waxy material comprising polyethylene oxide and triethylene glycol is used as a sealing plug in the connector stem of inflatable rubber curing bags used in the vulcanization of tyres (see Group V).  The plug is melted by steam or hot water which inflates the bag to high pressure at the commencement of vulcanization.  Being water-soluble, the composition is readily removed from the bag after vulcanization is completed.
Patent GB-533018-A (GB)
Title: Improvements in or means for feeding a supply of lubricant or a liquid through an induction system of an internal combustion engine or the like
IPC: F01M1/04
Filed: 1939-07-19
Abstract: 533,018. Admitting auxiliary fuel &c. THOMAS, A., and GUY, W. E. July 19,1939, No. 20940. [Class 7 (ii)] [Also in Group XXXIV] Upper cylinder lubricant or other liquid is supplied to the induction system of an internal combustion engine, compressor &c. past a spring-pressed valve, the body of which is flexibly anchored. Fig. 1 shows the valve body 14 anchored by a wire 17 to the strangler plunger valve of a carburetter and connected by flexible tubes 20, 21 to the starter air passage and induction passage of the carburetter. The initial movement of the strangler plunger hand control 16 operates the valve 15 against the resistance of a spring 19 to allow lubricant to pass from a bottle 1 through a tube 4 to the body 14. Further movement of the control 16 opens the strangler plunger valve. The control rod 16a is grooved to engage a projection 16d in its bush, a cross groove allowing the rod to be turned to secure it in its midposition. A spring-pressed valve 5 in the tube 4 prevents the flow of lubricant except under the suction of the engine. The lubricant may alternatively be supplied from the engine crank chamber or oil circulating system. In another arrangement, the valve 15 is connected to a vehicle hand brake lever and the valve body 14 is attached by a spring to a stationary part of the vehicle.
Patent GB-597362-A (GB)
Title: Improvements in collar studs, dress studs and the like
IPC: A44B3/02
Filed: 1945-08-17
Abstract: 597,362. Studs. WARNE, J. Aug. 17, 1945, No. 20983. [Class 43] A one-piece collar-stud, formed from a sheet of flat material, is of uniform thickness in one plane, and comprises a shank B, a head projection A and a base projection C. The head and base being symmetrically disposed about the centre of the adjoining shank. Both the head and the base may have rounded ends, the base being wider than the head. The shank B may have parallel or converging sides. When in position on a shirt, the stud assumes a substantially vertical position, the base C lying flat against the wearer's neck.
Patent GB-505266-A (GB)
Title: Spacer for stacking cut meats
IPC: A22C17/00
Filed: 1937-07-29
Abstract: 505,266. Stacking and displaying cut meats &c. SCHWARY, P. L., WATSON, J. G., GILKEY, L. E., WATSON, W. F., and SCHWARY, M. July 29, 1937, No. 20994. Void. Convention date, July 29, 1936. [Classes 3 (ii) and 116] A spacer for stacking cut meats, e.g. steaks &c., or other foodstuffs, comprises thin strips 13 of cellulosic material &c. which are assembled by partly slitting and interengaging the strips, so as to provide thin edges for resting on a lower and supporting a superposed layer of meat &c., the strips having apertures 14 and/or notches 15 to permit free circulation of air. In a modification, tubular members 16, Fig. 7, with thin edges may be connected by strips 17, air circulating notches 18 being provided. The tubular members may be anchored in a sheet of material so that the tubes project on both faces of the sheet, the tubes being slotted for air circulation. In a further modification, parallel sinuous strips 24, Fig. 6, may be secured in a sheet 23 so that the strips project on both faces of the sheet. The sheet may have a beaded &c, edge and apertures 25 in the sheet and notches 26 in the strips are provided for air circulation. The spacers may constitute shelves for a refrigerating chamber &c.
Patent GB-671897-A (GB)
Title: Improvements in or relating to pressure or load control device for linkage of metal working presses
IPC: F16H35/10
Filed: 1950-08-25
Abstract: 671,897. Metal-working presses. CLEARING MACHINE CORPORATION. Aug. 25, 1950 [June 12, 1950], No. 21063/50. Class 83 (iv). In a mechanical metal-working press having a slide 6 actuated by a link 13 formed by two sections 12, 14, pivoted at 15, a pressure or load control device on said link comprises a yieldable member mounted on section 14, a lever 29 connected, at one end to said yieldable member, and at the other end eccentrically to said pivot pin 15 so that a plane passing through the eccentric axis 27 and through the pivot axis 26 will be substantially perpendicular to the direction of force through said link, whereby any excessive pressure or overload on the link will cause said lever arm to rotate about the eccentric axis against the pressure of said yieldable member. The yieldable member comprises a piston-rod 31 one end of which is pivotally connected to the lever 29 and the other to a piston 32 in a cylinder 33 pivotally mounted on the link section 14. Air or other fluid-pressure is admitted to cylinder 33. In the event of excessive overload the press is stopped by a limit switch 35 mounted on the cylinder comprising an arm 36 which extends into the path of a rod 37 slidable in the end portion of the cylinder so that the rod is actuated by the piston when it approaches the end of its travel. A second limit switch 38 provided with an arm 39 which engages a rod 40 (Fig. 5, not shown), connected to the piston indicates whether or not the load control device is operating.