baber/WOPTO huggingface dataset:
Patent GB-457226-A (GB)
Title: An improved infinitely variable reversible gear box
IPC: F16H37/08
Filed: 1935-09-25
Abstract: 457,226. Variable-speed gearing. FAIREY AVIATION CO., Ltd., Cranford Lane, and VOSS, E., Bourne House, Dawley Road, both in Hayes, Middlesex. Sept. 25, 1935, No. 26553. [Class 80 (ii)] An infinitely-variable reversible variable-speed gear comprises a pair of sun-wheels 5, 6, on the driving- shaft 4, which co-operate respectively with planets 7 and interengaging planets, not shown, the planet carriers 8, 12 being connected to each other and to the driven shaft 13, so that when the driven shaft is at rest the two sets of planets drive friction discs 10, 11 in opposite directions. A disc 14 is releasably held in engagement with the discs 10, 11, and is moved bodily parallel to the driven shaft, so as to produce forward or reverse drive according to the direction in which the disc 14 is displaced from the symmetrical position shown. In the form shown, the disc 14 is held in engagement with the discs 10, 11 and traversed by a hydraulic arrangement, pressure for which is provided by a pump 33 on the driving shaft, so that if the drive ceases the gear is automatically disengaged. Fluid pressure is applied from the pump 33 through passages 36, 37, 38, and 40, 41 and ports 35, 39 to a cylinder 19 containing a ram 18 in which the disc 14 is mounted. The cylinder 19 carries pistons 20, 21 working in cylinders 22, 23, the supply of pressure to which is controlled by valves 43, 45 operated by pressure-sensitive devices 56, 58 from a remote control. In the position shown, both valves are partly open. Liquid from the passage 37 enters the cylinder 22 through a port 42 and escapes to exhaust through a port 44. A similar condition obtains in the valve 45, the pressures in the cylinders 22, 23 being equal and the disc 14 thus held in the neutral position shown. If the control is operated so that pressure rises in the device 56 and falls in the device 58, the three-armed lever 48 is rotated in an anticlockwise direction about its pivot 49 against the action of a spring 53 housed in a fixed frame 3, and the valve 43 is thus opened, simultaneous closure of the valve 45 being ensured by a rod 57 connecting the lever 48 to similar mechanism, not shown, for operating the valve 45. The pressure in the cylinder 22 is thus reduced, and the increased pressure in cylinder 23 urges the cylinder 19 and disc 14 to the left. The shaft 13 is thus driven at a speed depending on the difference in pressure, the lateral motion of the disc 14 being constrained by a spring 31 mounted in the fixed frame 32 and having end pieces 29, 30 engaging sleeves 26, 27, projecting from lugs 24, 25 on the cylinder 19. If the pressures in the devices 56, 58 are reversed, the drive is reversed. Engaging pressure may be applied to the disc 14 by mechanical means.
Patent GB-1503819-A (GB)
Title: Magnetic bubble propagation systems
IPC: G11C11/14
Filed: 1975-05-29
Abstract: 1503819 Magnetic storage arrangements MONSANTO CO 29 May 1975 [30 May 1974] 26563/77 Divided out of 1503816 Heading H3B The description and claims are directed to the "duck step" ferromagnetic elements arranged in overlay patterns which form part of the disclosure of magnetic bubble propagating arrangements in parent Specification. Fig. 1 shows two parallel overlay patterns 86, 88 of "duck step" ferromagnetic elements 90, 92, bubble propagation along each of the two overlay patterns being determined by the phase sequence of a three phase in-plane system of magnetic field pulses 102, 104. Bubble transfer between channels is obtained by combining two overlay patterns as shown in Fig. 3, together with the use of an appropriate order of magnetic field pulses each displaced by 120 degrees.
Patent GB-1375099-A (GB)
IPC: B01D53/64
Filed: 1972-06-07
Abstract: 1375099 Removing mercury from gases; treating active carbon GRUPUL INDUSTRIAL DE CHIMIE 7 June 1972 [7 June 1971] 26608/72 Heading C1A Mercury is removed from gases by contacting the gases with a porous mass (e.g. active carbon, silica gel, alumina, porous aluminosilicates or porous metal oxides), impregnated with an aqueous solution of a trivalent iron salt (e.g. ferric chloride, ferric sulphate, ferric nitrate, ammonium ferric alum, potassium ferric alum, ferric hydrogen sulphate, ferric perchlorate or ferric acetate), at a temperature in the range of 0 to 100 C. The gases may comprise hydrogen obtained by electrolysis with a mercury cathode or air polluted with mercury and may be  contacted with the impregnated porous mass at superatmospheric pressure.
Patent GB-1276571-A (GB)
Title: Internally heated autoclave for use in impregnating a porous material with a molten metal
IPC: C04B41/88
Filed: 1969-05-27
Abstract: 1276571 Internally heated pressure vessel NIPPON CARBON CO Ltd 27 May 1969 [28 May 1968] 26733/69 Heading B1X [Also in Divisions B3 and F4] An internally heated pressure vessel in which porous articles are impregnated with a molten metal, comprises a water cooled, insulated, stainless steel outer shell 1, a heating chamber 6 and an impregnating chamber 5. The porous articles to be impregnated are loaded into a graphite dip cage 15 secured to a shaft 14 which extends through the cover 17 of the vessel, and then lowered into the molten metal which is contained in a graphite beaker 7 backed by a stainless steel container 4 which separates the impregnating and heating chambers 5, 6 respectively. Both chambers may be selectively connected to a nitrogen or argon gas source (not shown) through line 10 to allow them to be pressurised, or to a vacuum pump (not shown) to allow a vacuum to be produced in them. The electric heater 3 is used to both melt and maintain the metal molten.
Patent GB-711845-A (GB)
Title: Improvements in methods of case hardening
IPC: C23C8/32
Filed: 1950-11-03
Abstract: Ferrous alloys are carbo-nitrided at 700-800 DEG C. in an atmosphere containing carbon monoxide, hydrogen, hydrocarbon and ammonia, the ammonia content being so low that no white layer is formed.  The ammonia content may be 0.5 to 2.0 per cent.  The articles may be treated in a known gaseous carburizing medium containing 0.5 to 10 per cent. of hydrocarbon and the above amount of ammonia, then cooled rapidly to a temperature between the Ae1 temperature of the core and the transformation temperature of the carbo-nitrided surface, and finally, after pearlitic transformation of the core, quenched.  The article may then be given a subzero treatment, e.g. at the temperature of liquid nitrogen.  The isothermal transformation of the core may be carried out by quenching the carbo-nitrided articles in a molten salt bath composed of 30-50 per cent. of sodium carbonate, 15-40 per cent. of sodium cyanide, and 20-40 per cent. of sodium chloride maintained at the appropriate temperature.
Patent GB-257124-A (GB)
Title: Improvements relating to golf balls
IPC: A63B37/00
Filed: 1925-10-27
Abstract: 257,124. Mitzel, H. F. Oct. 27, 1925. Balls.-Relates to a golf ball of the type in which the core is provided with a plurality of protuberances and depressions for engagement with the inner surface of the cover, and consists in that the balata cover is formed in two sections 7 which, with the assistance of heat, are permanently united to one another and to the core 4. Reference has been directed by the Comptroller to Specifications 2049/03 and 4183/03.
Patent GB-1429042-A (GB)
Title: System for sequential operation of apparatus in sequential data transmission systems
IPC: G06F1/04
Filed: 1973-06-06
Abstract: 1429042 Digital transmission; sequential operations JEUMONT-SCHNEIDER 6 June 1973 [15 June 1972] 26928/73 Heading H4P In an arrangement wherein one or more slow operations are to be performed within a sequence including fast operations, a counter 2, acting as a distributer and controlling the sequence has stepping clock pulses inhibited through a bistable circuit 4 during slow operations. When say hi, a conductor leading to a slow operating part of apparatus, is energized, NAND 7 grounds capacitor C allowing base current through transistor T cutting it off thus giving a 1 to NAND 5; this outputs a 0 to bi-stable 4 thus cutting off clock pulses through NOR 3 to counter 2 until the slow operation is completed, or until a time interval determined by capacitor C charging through resistor R4 has expired. When the operation is completed, contact of relay Rx is closed thus reverting circuit to the original state and counter 2 continues to advance. A monostable circuit may replace block 6 and the arrangement described is multipled, e.g. 8 for each slow operation which need not take the same time to complete.
Patent GB-319766-A (GB)
IPC: D01D10/04
Filed: 1929-09-05
Abstract: 319,766. British Enka Artificial Silk Co., Ltd., (Assignees of Naamlooze Vennootschap Nederlandsche Kunstzijdefabriek). Sept. 28, 1928, [Convention date]. Apparatus for making filaments; cellulose xanthates, processes for making filaments from. -Cakes of viscose silk are freed from noxious gases or vapours before washing or drying, by passing air or other innocuous gas therethrough at a temperature of at least 50 C. Thus, the cakes 2, Fig. 1, may be superposed in a frame 1 with the interposition of plates 3 having each a central opening 4. A covering plate 5 is placed on the uppermost cake, and the frame is inserted in a closed box having an atmosphere of warm air preferably containing sufficient steam to prevent undue loss of moisture from the cakes. The warm air is drawn through the silk by a suction pipe 7. Alternatively, the silk 16, Fig. 2, may be treated in the spinning bowl 8, the bowl being closed by a cover 10 through which passes a tube 13 having perforations 14 through which warm air is forced from a connection 15. The air leaves the bowl through perforations 9, and to ensure uniform distribution, the perforations at the bottom of the tube 13 are made larger than those at the top. A prior proposal is referred to comprising the treatment of the fresh silk, in bobbin form, with steam and ammonia.
Patent GB-689448-A (GB)
Title: Improvements in stays for hinged members
Inventor: MORLEY CYRIL JOHN
IPC: E05C17/28
Filed: 1951-11-19
Abstract: 689,448. Stays for hinged articles. LANE, Ltd., P. Nov. 19, 1951, No. 27042/51. Class 65 (i) An end-guided stay for a hinged panel 10 comprises a guide bar of uniform crosssection having a base 22 fixed to or formed integrally with the panel and connected to a head 20 by a neck 21 narrower than the head, and a stay bar 14 pivoted at its respective ends to the member carrying the panel and to a slide traversing the guide bar, the slide comprising a pair of jaws 23, 24 embracing the head of the guide bar and adapted to be tightened thereon or to be freed for permitting movement of the slide along the guide bar while retaining it against withdrawal therefrom, by means of a lever 31 adapted to operate jaw-tightening cam means. As shown, the lever is pivoted on a bolt 27 constituting the pivot between the stay bar and slide, and is formed with a cam-face 33 co-operating with a cam-face on jaw 24. The jaws are formed with abutting ribs 29, 30 respectively, and their initial degree of tightness is adjusted by a self-locking nut 28 on the bolt 27. The lever is formed with a notch which co-operates with a fixed pin for locking the panel in the closed position. It is stated that the lever could be provided with a segmental portion adapted to be interposed between jaw 24 and the stay bar or withdrawn completely to allow the jaws to be free, and that, in either of the above forms, the lever could be bifurcated and have limbs co-operating directly with the respective jaws.
Patent GB-536223-A (GB)
Title: Improvements in dough food products and processes of manufacturing same
IPC: A21D8/02
Filed: 1939-10-02
Abstract: 536,223. Cereal preparations such as bread. ROBSON, R. L. Oct. 2, 1939, No. 27059. Convention date, Jan. 3. [Class 49] In the production of a dough food produced, such as bread, an emulsion is formed by heating a vegetable fat to a fairly high temperature, such as 300‹ F., adding thereto and intimately mixing therewith white flour and boiled water and boiling the resulting mixture for, say, about 2 minutes, and a small proportion, say 1 per cent by volume, of this emulsion is then incorporated into a dough devoid of free fat. The dough may be prepared by fermenting a mixture of water, cereal, white flour and yeast and then adding salt and honey and further quantities of cereal and white flour, the emulsion being incorporated in the sponge so prepared.
Patent GB-1284717-A (GB)
Title: Production of plasterboard
Inventor: BAINES JOHN ERIC
IPC: C04B11/26
Filed: 1968-06-06
Abstract: 1284717 Plasterboard BPB INDUSTRIES Ltd 3 June 1969 [6 June 1968] 27068/68 Heading C1A Plasterboard is prepared by slurrying in water calcined gypsum produced by a wet phosphoric acid process, adding phosphate and/or sodium ions so that the slurry as cast has a total phosphate content of from 0À25 to 0À75% by weight calculated as P 2 O 5  and/or a total sodium ion content of from 0À10 to 0À8% by weight, adjusting the pH of the slurry to from 3À5 to 6, encasing the slurry between paper lining sheets and allowing the slurry to set. The "phosphogypsum" used to prepare the slurry is suitably calcined for 50 to 80 minutes, has a residual gypsum content of 4 to 7% by weight and after calcining is ground to a specific surface within the range 7000 to 8000 cm<SP>2</SP>./gm.
Patent GB-535778-A (GB)
Title: Improvements in or relating to electric oscillation generators
IPC: H03K3/10
Filed: 1939-10-03
Abstract: 535,778. Valve generating circuits. WHITE E. L. C. Oct. 3, 1939, No. 27069. [Class 40 (v)] In a multi-vibrator in which eacn valve is retroactively connected to the other, part of the coupling is effected through an impedance in the cathode circuit of one of the valves, the value of the impedance being such that flow of grid current is substantially prevented. In Fig. 2, the anode of value 1 is connected to the grid of valve 2 by condenser C1, and the anode circuit of valve 2 to the grid of valve 1 by the network R, C, R3, R4 The #-connected network R, C, R3, R4 may be replaced by a T-network, or if C and R are both zero, by a single cathode impedance common to both valves, Fig. 3 (not shown). The circuit may operate in a number of ways according to the nature of the network, e.g. if C and R are both zero, the period of each portion of the oscillations is determined by the time constant r1 C1, R2., and the bias potentials applied to the grids, but if R is very large the capacity C and cathode resistances R3, R4 determine the duration of the two halves of the cycle, the time constant C1, R2 being relatively long. The frequency stability may be improved by connecting the anode of valve 2 through an additional condenser to a point in the grid resistance R2. If desired, the anode of valve 2 may be connected in the usual way by a condenser to the grid of valve 1. Specification 511,847 is referred to. Reference has been directed by the Comptroller to Specification 528,806.
Patent GB-463264-A (GB)
Title: Improvements in or relating to belt conveyors for newspapers and like articles
IPC: B65H29/12
Filed: 1935-10-01
Abstract: 463,264. Endless - belt conveyers. IGRANIC ELECTRIC CO., Ltd., and RAPLEY, H. H. Oct. 1, 1935, No. 27075. [Class 78 (i)] A cornering belt, operating for example between horizontal and vertical runs of a newspaper conveyer either runs loose or is driven by a slipping drive, so that it adjusts its speed to that of the outer surface of the stream of articles being conveyed. As shown, the cornering belt 8 passes at an obtuse angle over a common end-roller 11 of the outer belts 2 and 4 of the main runs, which provides a clipping drive ; or, alternatively over an idler roller 14, so that it is driven by the papers themselves. The end rollers 9 and 10 of the cornering belt are mounted on pivoted links 12 and- 13 so that the tension may be adjusted. Rollers 6 and 7 hold the inner main runs 2 and 3, close to the outer main runs in the vicinitv of the cornering belt, so that the papers follow a . substantially curved path.
Patent GB-863437-A (GB)
Title: Line marker
Inventor: LODGE GUY BRYAN
IPC: A63C19/08
Filed: 1958-08-22
Abstract: 863,437. Line-marking machines. LODGE & CO. Ltd., P. G. Aug. 20, 1959 [Aug. 22, 1958], No. 27085/58. Class. 132(2). A line marker for athletic tracks or platform edges comprises a marking wheel 38 (Figs. 4 and 5) and paint discharge nozzles 41 or 57 carried on an arm 39 or 58 which can be so adjusted about the axle 35 of the wheel that paint is supplied either to the wheel or to the surface to be marked in front of the wheel. A transfer wheel may be disposed between the nozzles and the marking wheel. As shown in Figs. 1-3 a paint tank 10 is carried by an axle 11 having road wheels 12, 13. Paint is supplied from the tank 10 through a flexible pipe 42 on each side to the nozzles 41 supplying the marking wheels 38 which are mounted on plates 34, 34a at the extremities of arms 17, 18 extending from and pivoted to each side of the tank at 32. These arms are resiliently supported by springs 46, 47 and can be latched in raised position with the wheels 38 clear of the road by sliding bolts 53 fitted with operating handles 55.. Handoperated valves 21, 22 are disposed in the paint supply pipes. Extending forwardly from the centre of the tank is a support 28 on which are pivotally mounted about a fore and aft axis two gauge frames 30, 31 which can be latched in vertical position (Fig. 2) or swung down to opposite sides (Fig. 1). Frame 31 has guide wheels 78, 76 bearing on the side wall of, e.g. an athletic race track and on the track surface respectively; it is also telescopic to vary: the spacing of the lines from the side wall. The frame 30, which has a ground wheel 86, has an adjustable scriber 91 for marking the position of the next line. Tanks for paints of different colour may be fitted. For marking a platform edge a horizontal guide wheel is mounted on an arm extending outwardly from and downwardly below the marking wheel.
Patent GB-789249-A (GB)
Title: Improvements in valves for closing the ends of suction pipes
IPC: G05G5/06
Filed: 1955-09-22
Abstract: 789,249. Emptying tanks. GUINARD, P. A. Sept. 22, 1955 [Sept. 27, 1954], No. 27093/55. Class 21. [Also in. Group XXIX] A suction pipe 1 for emptying tanks has a closing member 9 that falls under gravity as soon as air is sucked up the pipe, the closing member 9 being adapted to lock automatically with a complementary part 2 of the pipe in its closed position until it is forcibly unseated by impact on the bottom of the container ; there being two rings of elastically deformable material, of which the first is a sealing ring 14 resisting downward movement of the closing member 9 when fully seated, while the second is a locking ring 15 that cooperates with an annular swelling on the closing member 9 or complimentary pipe part 2 by engaging or being engaged by the annular swelling from below to resist upward movement of the closing member when fully seated. As shown the locking ring 15 is in a groove in the closing member 9 and the complementary pipe part 2 has the annular swelling 13. The left hand side of Fig. 2 shows the closing member 9 in its unseated position and ready to rise with any liquid drawn up through the pipe 1. As shown on the right hand side of Fig. 2 the closing member 9 has fallen such that the locking ring 15 has been forced downwardly past the annular swelling 13 and the upper ring 14 is firmly seated. The closing member 9 can be displaced by forcing the tube 1 into a tank until the spring 21 is compressed sufficiently to allow an extension 20 of the closing member 9 to strike the tank bottom. The locking ring 15 may be associated with another elastic ring 16, the rings 15 and 16 being accommodated in a groove that decreases in depth from above downwards.
Patent GB-482895-A (GB)
Title: Improvements in or relating to straight bar knitting machines
IPC: D04B11/00
Filed: 1936-10-06
Abstract: 482,895. Knitting - machines. COTTON, Ltd., W., and WILDERS, G. Oct. 6, 1936, No. 27140. [Class 74 (ii)] A straight - bar machine having means for knitting a selvedged blank with a fashioned V-neck opening 30 has mechanism for operating points 15, 17 to fashion the outer edges of the blank and also to fashion the inner edges of the tabs 31a, 31b. The points 15, 17 are carried by bars 13, 14 operated by left and right hand stops such as 12 which also limit the traverse of the main thread carrier 10. On completion of the body of the blank, the thread carrier 10 is rendered inoperative and two splicing thread carriers 18, 19 on rods 20, 21 respectively are brought into operation to produce the tabs 31a, 31b, the points 15, 17 being moved inwards to begin the widening of the neck opening. At the same time main splicing stops 24, 25 on a splicing screw 22-23 are withdrawn and subsidiary stops 28, 29 rendered operative to limit the outward movement of the carriers. The inward movements of the splicing carriers are limited by subsidiary stops such as 26a on the screw stops 12 which with the part 15, 17, are moved apart to effect the widening. Specifications 9935/90 and 7068/91, [both in Class 74], are referred to.
Patent GB-1353127-A (GB)
Title: Cutting tools
IPC: B23B27/16
Filed: 1972-06-09
Abstract: 1353127 Cutting tools GENERAL ELECTRIC CO 9 June 1972 [18 June 1971] 27196/72 Heading B3T In a cutting tool of the type having an indexable cutting insert 3 which is located in a recess 2 at the end of the tool shank 1, the insert is clamped in the recess by a bridge type clamp 13 which has a chip breaker plate 12 secured thereto by a screw 14 the other end of the clamp having a wedge shaped configuration 18 which engages in a corresponding V-shaped slot 17 in the body of the shank. The cutting insert 3 has a central hole 11 into which the head 20 of the chip breaker screw 14 extends, whereby the tightening of the clamp by screw 15 effects both downward and lateral movement of the clamp by co-operation between the wedge and V-shaped portions causing the head 20 of the screw 14 and the clamp 13 to secure the insert in the recess. An insert seating member 7 is provided in the recess.