baber/WOPTO huggingface dataset:
Patent GB-496950-A (GB)
Title: Improvements in and relating to valve devices for admitting liquid to cisterns, tanks and the like
IPC: F16K47/02
Filed: 1937-06-08
Abstract: 496,950. Float - actuated valves. FERGUSON, J. L., and FERGUSON, J June 8, 1937, No. 15812. [Class 135] A float-actuated supply valve for cisterns, tanks, and the like of the kind having a series of metallic gauze discs 20 held in a socket 19 on the inlet side of the valve by a centrally ported screw-threaded member 14 is provided with a tubular valve seat member 5, 6 with an annular flange 7 resting on the bottom 4 of the tank or the like, the part of the seat member 5 above the flange guiding the valve member 1 and presenting the valve seat proper, and the other part of the seat member 6 forming the socket 19 for the discs 20. A member 9 supporting a pivoted float arm 11 and forming a stop for a collar 10 on the valve is adjustably threaded on the part 5 above outlet ports 21. The bottom wall 4 is clamped between the flange 7 and a nut 8, suitable washers being interposed to prevent leakage. The member 14 is in the form of an adj ustable flanged coupling and its lower end is connected to an inlet branch 17 which in turn is connected by a nipple coupling 23, 24 to a supply pipe 25. A series of gauze discs 22 are pressed by the supply pressure against a flange 26 on the nipple which has also a thimble-shaped filter 27. The two series of discs 20, 22 as well as the filter 27 are of non- corrosive wire gauze.
Patent GB-978166-A (GB)
Title: Bistable circuit
IPC: G11C11/44
Filed: 1962-04-25
Abstract: 978,166. Circuits employing superconductive elements. INTERNATIONAL BUSINESS MACHINES CORPORATION. April 25, 1962 [May 1, 1961], No. 15838/62. Heading H3B. A bistable cryogenic circuit is given a rapid switching time with no overlap of resistive states by using large switching currents but providing a variable feedback current which maintains the magnetic field of the resistive cryotron low enough to permit rapid switching. In the embodiment of Fig. 8 conductors 6 and 8 carry the switching currents I and I 2  for cryotrons C and D and the feedback current I 4  is controlled by cryotrons E and F. The sum I 3 =I 1 +I 2  is kept constant and equal to 2I 4 . The conductors 16 and 18 which control cryotrons E and F are wider than conductors 6 and 8 of which they form an extension so that the critical switching current, 1 unit say, of cryotrons C and D is half that of cryotrons E and F. In one stable state I 3 =I 1 =4 units, hence I 4 =2 units and the cryotrons C and E are resistive with cryotrons D and F superconductive. Although therefore currents of 4 units can be used to give fast switching times from superconductivity to resistivity, the field of a cryotron is kept down to 2 units so that the switching time from the resistive to the superconductive state is also fast. Fig. 9 shows an embodiment in which only two cryotrons are used, the inductances of two paths serving to divide the current and produce the appropriate feedback. Each gate of the embodiments is a thin film of tin on which is deposited a layer of silicon monoxide which carries thereon the control conductor consisting of a thin line of lead.
Patent GB-956187-A (GB)
Title: Fabric and conveyor belt
IPC: D03D15/56
Filed: 1962-04-26
Abstract: 956,187. Fabric for conveyer belts. UNITED STATES RUBBER CO. April 26,1962 [July 7,1961], No. 15894/62. Heading D1K. A woven fabric to be covered with rubber to make a conveyer belt has warp yarns 14,15 of cotton alternating with straight warp wires of brass-plated steel, all the wefts 16,16<SP>1</SP> being of nylon.
Patent GB-1458724-A (GB)
Title: Printing master
IPC: B41N1/14
Filed: 1974-04-10
Abstract: 1458724 Printing plates XEROX CORP 10 April 1974 [13 April 1973] 15985/74 Heading B6C A planographic printing plate comprises a layer comprising ink-release material that is (a) a composition comprising silicone polymeric material and non-silicone polymeric material or (b) a block copolymer comprising a silicone component and a non-silicone component; and fixed to and above the layer an ink-receptive surface. The ink-receptive surface may be applied by depositing particles on the layer and heating or treating with solvent vapour. The particles may be a toner image produced by electrophotography. The plate can be used without damping. An adhesive layer may be provided between the substrate and the ink-release material, and this adhesive layer may be epoxy resin or polyurethane.
Patent GB-273281-A (GB)
Title: Process for coating material with bituminous substances and products obtained thereby
IPC: D21H17/61
Filed: 1927-06-16
Abstract: 273,281. Naamlooze Vennootschap de Bataafsche Petroleum Maatschappij. June 28, 1926, [Convention date]. Pulp, adding special substances to.-The coating of paper-fibres or other materials with bituminous substances is effected by using a gel obtained by coagulating a bituminous emulsion in the presence of a colloid preferably with the addition of a finely divided substance. According to an example a bituminous roofing-paper is obtained by stirring an asphalt gel into paperpulp in such proportions that the pulp adsorbs twice its weight of bitumen, and making paper from the mixture in the usual manner. Fillers to decrease inflammability or for other purposes may also be added to the pulp with the bituminous gel. The Specification as open to inspection under 91 (3) (a) refers to Specification 245,418, [Class 22, Cements &c.]. The reference does not appear in the Specification as accepted.
Patent GB-561401-A (GB)
Title: Improvements in or relating to reciprocating pumps
IPC: F04B53/10
Filed: 1942-11-13
Abstract: 561,401. Valves. SILENTBLOC, Ltd., and HUTTON, P. C. Nov. 13, 1942, No. 16064. [Class 135] [Also in Groups XXVI and XXVIII] In a reciprocating pump, particularly suitable for use with liquids containing gritty matter in suspension, one or more pistons A and cylinders C are provided with rubber or like resilient rolling packing rings G, and each valve comprises a rubber disc with one or more rubber or like elastic stems which locate and normally retain the valve on its seat. In longitudinal section the pistons and cylinders may have surfaces which are straight and/or concave to receive the packing rings which may be solid or tubular to contain air or other fluid under pressure. Fig. 1 shows inlet and outlet valves H reinforced by metal plates H<2> and mounted on a common elastic stem H<1> carried by a rigid portion of the casing D between the inlet and outlet ports E, F. Fig. 3 shows an inlet valve J on a stem J<1> surrounded by an annular delivery valve K mounted on three rubber stems K<1> and normally closing three segmental ports K<3>.
Patent GB-840546-A (GB)
Title: Improvements in or relating to cleaning apparatus
IPC: A46B11/06
Filed: 1955-06-06
Abstract: 840,546. Brushes handles. ALLCHIN, E. F. July 27, 1956 [June 6, 1955], No. 16237/55. Classes 19 and 61. In the bore of a thermo-plastics tubular handle 19 of a hand brush is mounted a solid pellet 26 of detergent over which cleaning liquid flows in passing through the handle to the brush head. An externally threaded, conical nozzle 21 of a spigot 20 screwed into one end of the handle permits of the securing of the handle to the brush head. A conical nozzle 24 of a hose connector 22 screwed into the other end of the handle directs the liquid on to the pellet. The brush head forms the subject-matter of Specification 840,547 which is referred to.
Patent GB-900052-A (GB)
Title: Casement stay fasteners
Inventor: FELTON FREDERICK DUDLEY
IPC: E05C17/18
Filed: 1960-05-09
Abstract: 900,052. Stays. CRADDOCK & SONS Ltd., REUBEN. April 24, 1961 [May 9, 1960], No. 16255/60. Class 65 (1). A casement stay comprises an arm 7 pivotally mounted at one end on a pin 9 between the jaws 6 of a bracket 3 adapted to be secured to the window, the hole 10 in the arm through which the pin passes being tapered longitudinally of the arm so that at one face of the arm it is circular and at the other it is elongated, and the one face of the arm being chamfered at 11 whilst the other face is reduced at 12 at the opposite side of the hole to provide a clearance to permit the arm to pivot in planes including the axis of the pin. A nylon sleeve 9a is disposed around the pin.
Patent GB-594273-A (GB)
Title: Improvements relating to presses and other machine tools
IPC: B21D43/00
Filed: 1945-06-27
Abstract: 594,273. Work-holders. SUTER ELECTRICAL ENGINEERING. Ltd., and NEWSON, A. C. June 27, 1945, No. 16398. [Classes 83 (iii) and 83 (iv)] [Also in Group VIII] A press or other machine tool having a reciprocating tool holder is provided with hydraulic or pneumatic work clamping means whose control value is operated by the tool holder so that the work is automatically clamped or released when the tool holder reaches predetermined positions. A stock strip i is clamped against a stationary abutment by a side gauge which is pressed up to the work by dowel pins h engaging pistons a<1> operating in cylinders a and b. The rear ends of the cylinders are connected to a source of fluid pressure or to exhaust under the control of a plunger d which controls the exhaust passage g and has a cam end which operates the valve f controlling the supply of pressure fluid. The plunger is operated by an arm e movable with the press head or tool holder.
Patent GB-902425-A (GB)
Title: Improvements in asymmetrically conductive device
IPC: H01L29/00
Filed: 1959-05-13
Abstract: 902,425. Semi-conductor devices. GENERAL ELECTRIC CO. May 13, 1959 [May 15, 1958], No. 16426/59. Class 37. A semi-conductor device comprises a PIN structure having an injector electrode and a modulator electrode contacting the intrinsic material near the PI junction and a " buffer " electrode to the intrinsic material near the NI junction; the P and N conductivity types may be interchanged. Fig. 1 shows a PIN body in which the injector electrode 7 comprises a region of N-type conductivity and modulator 9 and buffer electrode 10 each comprise a P-type region. A source electrode 5 contacts P-region 2 and drain electrode 6 contacts N-region 3. The signal is applied between source 5 and modulator 9 electrodes and the output is taken across a load 19 in the source drain circuit. Operation is based on modulation of the injector-drain cnrrent by signals to the modulator electrode. The injector electrode is biased forward to inject minority carriers, and the modulator and buffer electrodes are biased in reverse, i.e. negatively, whereby they do not collect minority carriers. The buffer electrode 10 prevents internal feedback. The body may consist of silicon with 10<SP>18</SP> atoms per c.c. of boron (P-type) or with 10<SP>18</SP> atoms per c.c. of lithium (N-type). The semi-conductor may also consist of germanium, boron, silicon carbide, aluminium phosphide, gallium arsenide, indium antimonide, zinc telluride or cadmium telluride. In an alternative arrangement, the injector electrode consists of a point contact of platinum, platinum-ruthenium or tungsten. An intrinsic region may be produced as described in Specification 902,423 in which mobile atoms of impurity are caused to migrate under the influence of an electric field.
Patent GB-863556-A (GB)
Title: Improvements in clasps
Inventor: BELL LESLIE OTTO
IPC: A44B11/25
Filed: 1958-05-22
Abstract: 863,556. Strap fastenings. GRACELINE FOUNDATION Ltd., and OPTICAL PRODUCTS Ltd. Aug. 24,1959 [May 22, 1958], No. 16480/58. Class 44. A clasp consists of two components 1, 2 which are connected by a pin 8 on one entering a socket 10 on the other, the axis of the pin and socket being in a plane containing the direction of tension between the components and substantially at right angles to the direction of tension, the pin and socket being of substantial axial extent so as to resist rocking in the plane referred to, the two components having surfaces 12, 14, which when the clasp is assembled and under tension, co-operate to prevent withdrawal of the pin from the socket but which cease to co-operate when one component is swung relatively to the other about the axis of the pin and socket and the two components being of small thickness in a direction perpendicular to the plane containing the direction of tension. As shown, the components are made of nylon and the front face of component 2 includes a decorative part 18 which conceals the line of division between the components and restricts swinging in one direction. As applied to a brassiere the outer end of each component enters an edge seam in which it is frictionally secured by a wire 24. The surfaces 12, 14 may be inclined surfaces or steps.
Patent GB-1502553-A (GB)
Title: Electric switch
IPC: H01H29/28
Filed: 1976-04-23
Abstract: 1502553 Conducting-liquid switches J EFTHER and J DENISSELLE 23 April 1976 [13 May 1975 18 Feb 1976] 16483/76 Heading H1N A conducting-liquid switch comprises an elongate insulating container 1 divided into three compartments, of which one compartment, A, contains gas and an electrical resistor 4, another compartment, C, contains two electrodes 6 and 7 to be bridged by the conducting liquid when displaced consequent upon expansion of the gas in A when resistor 4 is energized, and an intermediate third compartment, B, acts as reservoir for the conducting liquid, compartment C communicating with compartment B by a channel 3a at the lowest part of C and the reservoir B communicating with A by a channel 2a arranged in its upper part so as to permit passage of gas but containing means such as a wick 9 to resist passage of the liquid conductor. As shown the container 1 is of glass, the liquid is mercury, and the resistor is a fine wire 4 supported in a zigzag fashion to embrace maximum gas. Compartments A and C are of equal volume which is four times the volume of B.
Patent GB-834051-A (GB)
Title: Improvements in melt spinning
Inventor: STANLEY WILLIAM
IPC: B01D29/00
Filed: 1957-05-24
Abstract: <PICT:0834051/IV (a)/1> <PICT:0834051/IV (a)/2> A filter bed, for use in melt-spinning apparatus, comprising graded layers of inert granular material, is characterized in that at least some of the finest material comprising the lowermost layer of the bed is moulded into a shape or shapes so that the total filtering interfacial surface of the layer of finest material is greater than the cross-sectional area of the bed, said moulded material being held together by a binding agent which is removed before or during the initial stages of the melt-spinning operation.  The moulded shape may be a hollow frustum of a cone, a hollow hemisphere, a cylinder or a rectangular thick-walled box. The inert granular material may be silica sand, iron filings, steel filings or similar metallic substance.  The binding agent may be ethylene carbonate or water, either of which is preferably removed from the bed by volatilization. The polymer which will subsequently be filtered through the bed may also be used as the binding agent.  As shown, a moulded shape 6 of fine sand in the form of a hollow conical frustum sits on gauze 5 which may be of stainless steel.  The space above gauze 5 between the shape 6 and the inside wall of the pack body 2 may be filled with loose fine sand 7 to a depth equal to the wall thickness of the shape 6. Coarser sand 8 may cover fine sand 7 and moulded shape 6, and the core of the latter may be filled with moulded coarse sand 9.  Fig. 2 shows a number of smaller moulded shapes 10 of fine graded sand. A further increase in the interfacial surface area may be obtained if the outer surfaces of the moulded shapes 6, 10 are corrugated. Polyethylene terephthalate may be spun through the filter bed into fibres and films.
Patent GB-1043129-A (GB)
Title: Lubricant compositions
Inventor: MUNDAY WILLIAM ALEXANDER
IPC: C10M169/00
Filed: 1964-04-22
Abstract: Lubricant compositions comprise a major proportion of a hydrocarbon lubricating oil and a minor proportion of one or more cyclic phosphazenes of a certain type, typical of which is 2 - chloro - 2,4,4 - trisdimethylamino - 6,6 - bis - ethylthiocyclotriphosphazatriene.  The compositions may also contain one or more of the following additives:-triphenyl phosphate, silicone polymers, polymeric acrylates, an alkyl methacrylate/vinyl pyrrolidone copolymer condensation products of long-chain alkenes with maleic anhydride, acidless tallow, castor oil, disalicylalethylene diamine, bis(2,6-ditertbutyl-4-hydroxyphenyl)methane, dibenzyl sulphide or chlorinated paraffin wax.ALSO:Cyclic phosphazenes containing tertiary amine (or t-butylamino-) and thioether groups and which are useful as lubricant additives may be prepared by stepwise replacement of Cl in (NPCl2)3 or 4 by reaction with a secondary amine (or tert-butylamine) and an alkali metal mercaptide. Examples utilize the following compounds in lubricants: 2-chloro-2,4,4-tris-dimethylamino - 6,6 - bisethylthio - cyclotri-phosphazatriene; 2,2,4,4 - tetrakis - dimethyl-amino - 6,6 - bisethylthio -cyclotriphosphaza-triene; and 2,2,4,6 - tetrakis - dimethylamino-4,6 - bisethylthio - cyclotriphosphazatriene. The compound 2,2,4,4-tetrakis tert-butylamino-6,6 - bis - n - butylthiocyclotriphosphazatriene is also specified.
Patent GB-807878-A (GB)
Title: Improvements in or relating to the surface treatment of metals
Inventor: DRYSDALE ROYSTON FRASER
IPC: C23C22/76
Filed: 1954-06-04
Abstract: A conversion coating is produced on a metal surface by spraying, the spraying being performed at least twice and the duration of each spray application being controlled so that the total time between the first and last applications during which the surface is out of contact with the spray is greater than the total time during which the surface is in contact with the spray. Coatings may be produced using phosphate solutions; solutions containing aliphatic or aromatic dicarboxylic and hydroxycarboxylic acids, such as oxalic, malonic and tartaric acids; solutions containing aromatic sulphonic acids; and solutions containing chromates.  In the two forms of apparatus described, (1) the articles are subjected to a spray which is fed intermittently with solution through a rotating-disc valve, and (2) the articles are moved through spaced spray-zones produced by a plurality of sprays.  Specification 768,443 is referred to.
Patent GB-556683-A (GB)
Title: Feeding means for typewriting and like machines
IPC: B41J15/10
Filed: 1942-11-25
Abstract: 556,683. Typewriters. AUTOGRAPHIC BUSINESS FORMS, Ltd. (Autographic Register Co.) Nov. 25, 1942, No. 16710. [Class 100 (iv)] Paper and web feeding arrangements.- In a typewriting, tabulating and like machine, the paper web 21 is positively fed to and from the platen 22 by the same means, provision being made for taking up any slack in the loop. The feeding-means consists of a pair of pin-wheels or sprockets 42 with spaced pins 43, guides or fingers 53, 71 being provided to ensure the pins 43 engaging the apertures in the web 21. Guide plates 52, 70 direct the web to and from the platen and to assist in feeding the leading end of the web around the platen, a pressure roller 23 is brought into play at such time. The pin-wheel and platen shafts are geared together, and any slack in the web loop is taken up by a bail 78 carried by weighted arms 77 pivoted on rod 49 and provided with stop pins 79. Guide members 80 which direct the web to and from the pin-wheels are supported by links 81 from rods 30. The feeding-means is carried between side plates 28 connected by rods 29, 30,49 and notched to engage pins 37, 38 on the machine. A back attachment for guiding the web from the supply comprises plates 60 connected by rods 62 and notched to engage machine pins 64, 66, a latch 67 being also provided. The web rests on some of the rods 62, other rods receiving a table 85 for the issuing web. U.S.A. Specification 2,189,025 is referred to.
Patent GB-873440-A (GB)
Title: Improvements relating to oil-immersed fuses
Inventor: GRAY WILLIAM
IPC: H01H85/42
Filed: 1958-05-23
Abstract: 873,440. Fusible cut-outs. REYROLLE & CO. Ltd., A. May 22, 1959 [May 23, 1958], No. 16710/58. Class 38 (1). An oil-immersed fuse 10, e.g. for an oil-immersed fuse-switch unit, in which a movable electrode spindle 12, biased away from a fixed electrode 14 by compression springs 15 the electrodes being held in spaced relationship by an elongated fusible element 23 connected mechanically in tension between them to carry the current and shunt the gap 40 between the electrodes, has an arcing chamber 11 which is laterally vented as at 25 and which is so positioned in relation to the electrodes that an arc is drawn between the electrodes within the chamber 11 when they are. separated from one another on melting of the fusible element, and is characterized in that the majority of the effective length of the fusible element is situated outside the arcing chamber 11 in a region which is freely vented as at 31C to the surrounding oilfilled space. The element 23 is a length of steel wire with a sleeve of silver tubing and is incorporated in a replaceable fuse link, Fig. 5, comprising a detachable arcing tip 13 of the movable electrode spindle 12 and the fixed electrode 14 which has an arcing tip 32 and which is secured to the end cap 31 of the fuse 10, the element 23 mechanically and electrically connecting the members 13 and 14 which are held in alignment and spaced as at 40 by a tubular insulating bush 39 whose ends engage in annular recesses formed in the end faces of the arcing tips 13 and 32. In operation, when the element 23 is vaporized by a short-circuit current the resulting arc is freely vented outside the body 24 of the arcing chamber 11 and the pressure wave dissipated. The current is transferred to the short air gap 40 and forms a short arc which is progressively elongated within the arcing chamber 11, until it is extinguished by the movement of the electrode spindle 12 which is no longer restrained by the fusible element. The movable electrode may be arranged to act as a striker pin to trip the associated switch.
Patent GB-222210-A (GB)
Title: Improvements relating to receiving circuits for wireless telegraphy and telephony
IPC: G01S3/12
Filed: 1923-06-27
Abstract: 222,210. Hinton, N. P., and Metropolitan-Vickers Electrical Co., Ltd. June 27, 1923. Undesired signals, eliminating; thermionic amplifiers; directive signalling.-Signals are received upon an aperiodic open aerial 1, 2 and also upon a tunable frame aerial 5, 6, the electromotive forces due to a given undesired signal being balanced out, while the vector difference of the electromotive forces produced by the desired signal is led to a detector or amplifier. The open aerial is connected to the grid circuit of the valve 4, the frame aerial forming part of the tuned anode circuit. The battery 9 is connected to the midpoint 10 of the frame aerial, and the anode 8 to a switch 7, whereby the signals received by the open aerial and amplified by the valve 4 may be made to assist or oppose the signals received directly by the frame aerial. The frame aerial is first tuned to the undesired signal with the switch 7 open; switch 7 is then,closed in one position or the other and the amplification factor of the valve 4 is altered by varying its filament, current or grid potential, or the value of resistance 2, until the undesired signals are balanced out in the frame aerial circuit. Instead of using the switch 7, the frame aerial may be rotated through an angle of 180‹ in order to obtain the assistance or opposition of the signals produced directly and indirectly in the frame aerial circuit. A signal of different direction or wave-length or both is not completely balanced out and is led by the coils 16, 17 to the detector or amplifier. The open aerial may be embodied in or supported by the frame aerial.