baber/WOPTO huggingface dataset:
Patent GB-310090-A (GB)
Title: Improvements relating to valves
IPC: F16K3/36
Filed: 1928-01-21
Abstract: 310,090. Leach, R. W., and Bateman, W. H. Jan. 21, 1928. Channels and reservoirs in valves.-In a valve of the sliding or rotary plate type, the fixed and movable parts are provided with channels communicating with a source of lubricant under pressure, some of the channels being arranged to surround the passages in the valve when the valve is open or closed, while certain channels which become exposed during the movements of the valve are put out of communication with the source of supply during such exposure. As applied to a valve having a slidable plate a, Figs. 1 and 2, a groove c is formed around each face of the plate and a transverse groove d is formed across each adjacent face of the body b. Short lateral branches i from the channel e are adapted to coincide with the ends of the channels d when the valve is closed. Lubricant is supplied under pressure to the channel c from a chamber f in the body by a screw g or by a piston subjected to spring or fluid pressure, holes j affording communication between the channels c. During movements of the valve, the channels d, which become exposed, are cut off from the channels c. Where a door is provided for inspection of the aperture h in the plate when the valve is closed, the channels c, d, i serve to surround both the valve passage e and the inspection opening. As applied to a rotary plate valve, wherein a ported disc p, Fig. 6, is adapted to be oscillated between stationary ported discs m, Fig. 5, a radial groove o is formed adjacent one edge of each port in the disc m, one or more or which grooves are supplied with lubricant under pressure from a chamber in the body. In each face of the disc p are formed outer and inner circular grooves r, s, joined by radial grooves t, the grooves on the two faces being connected by holes. The grooves t coincide with the grooves o in the open position of the valve, and, in the closed position, short radial grooves u, v on the disc p connect the grooves o to the grooves r, s. In intermediate positions, the grooves on the disc p pass out of communication with the source of supply. In a modification wherein the disc p can receive a complete rotational movement, the fixed discs m are provided with short radial inner and outer grooves, one or more of which is in communication with the source of lubricant, while the moving disc has on each side outer and inner circular grooves and radial grooves, together with short outer and inner radial grooves which effect communication between the various grooves only when the valve is open or closed.
Patent GB-1131632-A (GB)
Title: Improvements in or relating to electrical negative resistance devices
Inventor: KOBAYASHI HARUHIRO
IPC: H05H1/00
Filed: 1965-01-18
Abstract: 1,131,632. Valve oscillating circuits. NIPPON ELECTRIC CO. Ltd. 18 April, 1966 [18 Jan., 1965], No. 2063/65. Heading H3F. [Also in Division H1] An oscillator is formed by the connection of a resonant tank circuit between the anode 4 and a first mesh grid 2 of a discharge tube (see Division H1) having a filling of a gas which exhibits a minimum in the curve of electron collision probability versus electron energy (Fig. 3, not shown). The potential applied between the grid 2 and the anode is arranged to ensure operation in the negative resistance region which arises from the above electron collision behaviour, and the lower end point of which corresponds to the minimum of the probability energy curve. The tube characteristic may be adjusted by adjustment of the potential applied to the further mesh grid 3.
Patent GB-576279-A (GB)
Title: Improvements in and relating to the manufacture of printing plates and of materials suitable for use therein
IPC: B41N1/12
Filed: 1944-02-04
Abstract: 576,279. Printing-surfaces. B.X. PLASTICS, Ltd., COUZENS, E. G., and ADAMSON, P. S. Feb. 4, 1944, No. 2089. [Class 100 (ii)] [Also in Group VIII] A compound plastic sheet, which is especially applicable for the production of printing-plates is formed with a normally hard plastic surface, such as a polymerized artificial resin, or a cellulosic thermoplastic material, united to a similar surface which is softer or more resilient than the first surface. The two surfaces are united by heat and pressure, by rolling, or by means of cement and if desired a bonding sheet of fabric. The design is applied to the hard surface by moulding from a matrix which may comprise a lubricated phenol formaldehyde resin. The hard layer may be composed of the copolymer of polyvinyl chloride and acetate in which the proportion of acetate is not greater than 20 per cent, and the soft layer composed of the same material and a plasticiser such as dibutyl phthalate, which may comprise from 40-45 per cent of the copolymer. Either or both layers may contain 20-25 per cent of a filler such as talc powder, or titanium oxide. An alternative composition contains plasticised polyvinyl chloride as the hard layer. The hard layer may be formed from ethyl cellulose with or without a small proportion of a plasticiser, and the soft layer of the same but highly plasticised material, or of plasticised polyvinyl chloride, or copolymer of polyvinyl acetate and chloride.
Patent GB-1035111-A (GB)
Title: Improvements in wallpaper pasting machines
IPC: B44C7/02
Filed: 1964-01-17
Abstract: Wallpaper pasting apparatus is provided with facilities enabling it to be attached to the end of a pasteboard or pastetable so that the bulk of the apparatus is below the level of the working surface of the pasteboard or pastetable ensuring that the emerging pasted wallpaper is substantially on the same level and in the same plane as said working surface.  Such facilities may incorporate vertical and horizontal adjustment means so that the apparatus can be fitted to pastboards or pastetables of various widths and thicknesses.
Patent GB-849671-A (GB)
Title: Improvements in or relating to vehicle disc brakes
Inventor: O WILLIAM JERRY CASEY
IPC: B61H5/00
Filed: 1957-01-21
Abstract: 849,671. Disc brakes. AMERICAN STEEL FOUNDRIES. Jan. 21, 1957, No. 2126/57. Class 103 (1). In a vehicle disc brake, brake levers 18, fulcrumed to a fixed part of the vehicle by means of pivot pins 20, have attached thereto brake friction pads 24 at one end and are provided at the other end with rollers 48 such that when brake linkage lever 52 is actuated a conical wedge portion 44 is moved by lever 40 between the rollers 48 to urge the friction pads 24 into frictional contact with the sides of the brake disc. The brake levers 18 are released by means of the action of torsional springs 30. Specification 585,079 is referred to.
Patent GB-548070-A (GB)
Title: Improvements relating to steering gear for road rollers, traction engines and like road vehicles
IPC: B62D5/24
Filed: 1942-02-16
Abstract: 548,070. Power steering gear for vehicles. AVELING-BARFORD, Ltd., and BRAMBLE, W. H. Feb. 16, 1942, No. 2141/41. [Class 79 (v)] Relates to hand and power steering-gear of the kind in which the engine drives the steering-shaft through reversing gearing including two friction clutches, and comprises an arrangement where the steering hand-wheel or lever operates through a spindle slidably-connectable either to the power steering- gear or to the pivot of the steering road wheels or rollers. In the construction shown the hand slidable shaft 33 having a coupling pin23A adapted to engage either clutch teeth 24B on a worm 24 for power steering, or clutch teeth 20A on a hollow shaft 20 for band steeing, the shaft 20 being the steering shaft for the front roll 1. The worm 24 is engaged by rollers 71 carried at one end of a floating lever 66 the other end of which is connected to the front steering roll 1 or other steered member, an intermediate part of the lever being coupled by trunnions 77 and a fork 78 to a sliding bar 65 controlling power reversing mechanism for steering the roll in either direction. The bar 65 is adjustably connected by screws 63, 64 to clutch forks 59, 60 of friction clutch members splined on a shaft 42 constantly driven from the engine, the driven clutch members, 41 45 being fixed respectively to a pinion 40 and a chain sprocket 44 whereby a shaft or sleeve 20 can be driven in either direction. The sleeve 20 is connected by an Oldham's coupling 19 to a shaft 16 driving the steering pivot of the foll 1 through worm gear 15, 13 and a pinion 12 meshing with a gear segment 6 on the steering pivot. Thus, when the handwheel shaft is rotated the worm 24 rocks the lever 66 about its pivot 72 connected to the front roll and moves the bar 65 to the right (say) so that the clutch 45, 56 is engaged and the shaft 42 drives the sleeve 20 through the chain gear 44, 39 and steers the front roll in the desired direction. This movement of the roll causes the lever pivot 72 to move to the right and the lever 66 is rocked about the rollers 71 as pivots so that the clutch 45, 56 is disengaged as soon as the roll has taken up a position corresponding to that of the steering hand-wheel. The steering movements of the front roll are transmitted to the lever pivot 72 by an arm 8, link 94, lever 93, 89 mounted on a vertical pivot 91, and a crosshead 84 connected to the pivot 72 by a spring 82 and a link 73. When it is desired to steer by hand the steering hand-wheel is pushed in and slides the shaft 23 forwardly to couple the hand-wheel shaft to the sleeve 20. (For Figure see next page)
Patent GB-385453-A (GB)
Title: Improvements in or relating to rotary fans
IPC: F04D27/02
Filed: 1932-01-25
Abstract: 385,453. Centrifugal fans. PAUL & CO., Ltd., M. and WORKMAN, R. E., Levenford Works, Dumbarton. Jan. 25, 1932, No. 2167. [Class 110 (i).] Fan inlets comprise a ring 7 which is moved axially to vary the gap 9 between the ring and the impeller 4 and control the output.
Patent GB-1471581-A (GB)
Title: Yarn crimping apparatus
Inventor: EAVES RONALD SPENCER
IPC: D02G1/04
Filed: 1974-01-17
Abstract: 1471581 False twisting yarns ERNEST SCRAGG & SONS Ltd 9 Jan 1975 [17 Jan 1974] 02219/74 Heading D1F An apparatus for false twist crimping thermoplastic yarn comprises in sequence heating means 13, cooling means 16 and false twisting means 18, the heating and cooling means defining yarn heating and cooling zones through each of which the yarn travels in a curved path, the entry end of the heating zone and the exit end of the cooling zone being closely adjacent each other and the false twisting means. Preferably the heating and twisting means are plates 14, 16 having grooves 15, 17 respectively in which yarn 11 travels. As shown the heating and cooling paths are arcs of the same circle. Alternatively they may be sections of one or more ellipses. Plate 14 may be heated by electricity or heated fluid; plate 16 may be cooled by air or water. The false twister 18 may be a spindle or bush twister or as shown a disc friction twister comprising a plurality of discs rotatably mounted on shafts such that the yarn passes transversely to and in frictional contact with the peripheries of the disc. From false twister 18 each yarn 11 is fed to a second stage heater 23 and by feed rollers 23 to a take up creel (25, Figs. 3, 4 not shown) or to unspecified further processing apparatus.
Patent GB-162088-A (GB)
Title: Improvements in electrically heated irons
IPC: D06F75/24
Filed: 1920-01-26
Abstract: 162,088. Cheshire, H. (trading as Cranmer & Cheshire), and Summerhayes, V. Jan. 26, 1920. Electric hand-irons.-The heating element consists of a high-resistance winding on a pair of mica strips contained between mica plates 7, 8, which carry the terminals 6, the element being held between a cover 15 and a bottom plate 1 by nuts and bolts 17, 16, so that the terminals protrude through an aperture 20 in the cover. A bent plate with legs 26, 27 supports the iron when not in use, and has a metal guard 21 which surrounds the terminals. A heat insulating washer 12 may be placed above the heating-element and the method of attachment of terminals slightly varied.
Patent GB-336516-A (GB)
Title: A process for preparing acetylides
IPC: C07F1/00
Filed: 1930-01-23
Abstract: 336,516. Deutsche Gold-und Silber- Scheideanstalt vorm. Roessler. Feb. 7, 1929, [Convention date]. Acetylides, particularly of the alkali metals or alloys thereof amongst themselves, are made by continuously exposing fresh surfaces of the molten metals or alloys to the action of acetylene. This may be effected in a rotating tube in the absence of water and air which is displaced from the tube by nitrogen before introducing the metal. Pure dry acetylene preferably diluted with inert gases is used, the temperature being kept constant. The acetylide may be removed in an inert atmosphere such as nitrogen. For monosodium acetylide 60 hours are required at a temperature of about 170-180‹ C. For disodium acetvlide 210-220‹ C. is used.
Patent GB-636657-A (GB)
Title: Improvements in or relating to the combustion chambers of internal combustion engines
IPC: F02B21/02
Filed: 1948-01-27
Abstract: 636,657. Combustion chambers. CULBERT, F. J. Jan. 27, 1948, No. 2417. Convention date, Sept. 1, 1942. [Class 7 (iii)] In a direct injection engine having a main cylindrical combustion chamber a communicating through a groove d and a restricted aperture c with an auxiliary chamber b, the axes of the fuel nozzle f and the aperture c are slightly inclined and intersect the wall of chamber a in chords j, i of which the cord i is shorter than the chord j. The gases issuing from the chamber b during combustion cause rotation of the gases in the chamber a, and a baffle x deflects part of the issuing gases across the axis of injection to cause thorough mixing. The lower edge of the chamber a is formed by an inserted ring q, Fig. 3, having a sharp corner s and made of a more heat resistant material than the cylinder head material.
Patent GB-591095-A (GB)
Title: Improvements in or relating to ready reckoners in rule form
IPC: G06G1/00
Filed: 1944-02-09
Abstract: 591,095. Calculating. BRITISH TABULATING MACHINE CO., Ltd., and HAWORTH, A. H. Feb. 9, 1944, No. 2435. [Class 106 (i)] A device for calculating tax payable on weekly wages under the pay-as-you-earn system comprises a support 1, main and auxiliary slides 2, 3, and a set of week scales, one for each week in the year after the first, and which may be affixed to the support in a predetermined position. The main slide is provided with a weekly wage scale W, and the support and auxiliary slide are provided with full rate tax scales FT, AFT and reduced rate tax scales RT, ART, respectively. Each week scale D may be in two parts and is provided with a scale of total tax at full rate and a scale of total tax at the difference between the full and reduced rates. Either the support or the main slide is provided with a scale C of code numbers. A cursor is provided to enable a reading to be taken from the wage scale to any other of the scales so that with a setting to a given code number and, where required, a setting of the auxiliary slide, the tax or refund in respect of any weekly wage can be read on one of the tax scales. Reference has been directed by the Comptroller to Specification 573,520.
Patent GB-209953-A (GB)
Title: Improvements in or relating to display stands and the like
IPC: A47F5/10
Filed: 1923-01-26
Abstract: 209,953. Dingwall, J. Jan. 26, 1923. Rack stands.-A display stand for rolls of cloth &c. comprises a folding trestle member a each leg of which carries one or more, folding brackets k. A platform d may be hinged to the trestle near its top and a member g, hinged to one of the trestle legs and resting upon a support h on the opposite leg, may be provided for displaying articles which will rest against the trestle.
Patent GB-894502-A (GB)
Title: Jacking mechanism for elongated members
Inventor: OWEN WALLACE
IPC: E02B17/08
Filed: 1958-01-24
Abstract: 894,502. Artificial islands. SARO (ANGLESEY) Ltd. Jan. 22, 1959 [Jan. 24, 1958], No. 2462/58. Class 68(2). Jacking means for producing relative movement between a base structure 21 and an elongated member 12, such as a pile, in a direction along the axis of the pile comprise abutments which have parallel side faces and concave end faces 38, 39, spaced along the member and includes a power operated jack and two stepping members 20, 31 which can move relative to one another and to the elongated member, the jacking device operating between the two stepping members or between each stepping member and the base, and locking means 32, 33 carried by each stepping member to lock it to the elongated member, the locking means comprising a rotary member 42 which has a cylindrical head 44 with a diametral groove 45 whose width is slightly greater than the width of the abutments, and means for rotating the member 42 between the positions where the groove 45 is parallel to or at right angles to the abutment blocks. The jacking mechanism comprises the lower stepping member 20 secured to the base and an upper cross-piece 25 connected to the base by side members 26 and 27. Extending between the cross-pieces 20 and 25 are two piston-rods 24 which have pistons 28 secured to their midpoint. On each piston slides a double acting cylinder 29 and the cylinders are connected together by the second stepping member 31. The locking members are rotated through 90 degrees by an hydraulic motor of the oscillating vane type.
Patent GB-885957-A (GB)
Title: Improvements in or relating to a heat resistant iron base alloy
IPC: C22C38/22
Filed: 1960-01-22
Abstract: A high temperature steel, particularly for use as a bearing material, has the following percentage composition by weight:- .C.0,6- 1 .Mn.0,2- 1,1 .Si.1 - 2,25 .Cr.11 -17,5 .Mo.3 - 5,5 .Fe.the balance It may also contain V up to 1%.  The specification refers to the heat treatment of samples of the steel by oil or air quenching from 1850-2100 DEG F. and reheating to 500-1200 DEG F. for 2 hours.
Patent GB-819601-A (GB)
Title: Improvements in or relating to beam joints
IPC: E04B1/26
Filed: 1957-01-23
Abstract: 819,601. Beams. NEMAHO N. V. Jan. 23, 1957 [Nov. 20, 1956], No. 2500/57. Class 20(4) Longitudinal saw cuts 8 are provided in the end faces of beams a, b which are to be connected, one containing a hooked or perforated connecting plate 9 engaging in and supported by a member 14 extending across the other beam. The plate 9 is fixed in the end beam b by rivets 10 and has at its base a laterally bent part 11 on which the beam bears. The member 14 is a bolt which traverses the saw cut 8 in beam end a and has clamping washers 16 under the head and nut. The plate 9 is cut away at 12 to form a hook which engages over the bolt 14 in the saw cut, the neck 13 of the hook being smaller than the distance from the bolt 14 to the upper edge of beam a so that rivets 15 can be driven across the top of plate 9 to prevent disengagement of the hooked part. Alternatively to the hook provided, the plate 9 may be bored to accommodate the bolt 14.
Patent GB-840171-A (GB)
Title: Improvements relating to electrical plug connectors incorporating transformers
Inventor: PERRY ERNEST
IPC: H01R13/66
Filed: 1957-01-24
Abstract: 840,171. Transformers. ELECTRAN COIL WINDING & TRANSFORMER CO. Ltd. Jan. 2, 1958 [Jan. 24, 1957], No. 2543/57. Class 38 (2). [Also in Group XXXVI] To obtain a low-voltage supply from a highvoltage socket a step-down transformer 1 is incorporated in the plug member, the plug contact pins 8, 9 and the pin 10 which earths the transformer screen 16 being carried on a panel 7 in one end cap 5 which is provided with holes through which the pins 8, 9 and 10 protrude. Pins 8 and 9 are connected through a fuse to spring tongues 11, 12 which make contact with trip members connected to the ends of the primary winding. The secondary winding has terminal contacts 25, 26 which are connected to leads 18, 19 through spring tongues 22, 24 and fuse 23 on panel 17. According to the Provisional Specification the low-voltage output may be taken off through a small socket or screw terminals, the secondary circuit may be connected to the earthing pin 10 and the outer casing may be of rubber or plastic material moulded over the parts.
Patent GB-702220-A (GB)
Title: Method of electroplating
IPC: C25D5/18
Filed: 1951-02-01
Abstract: 702,220. Electrodeposition of copper. POOR & CO. Feb. 1, 1951 [July 17, 1950], No. 2554/51. Addition to 599,707. Drawings to Specification. Class 41 In a method of controlling the electrodepositicn of copper on an electrically-conducting object of a type in which the copper would normally be deposited in greater concentrations in some areas than in others by a direct plating current, the object is subjected to a plating current in an acid copper sulphate plating bath, the current having an asymmetric wave form and comprising an alternating current superposed on a direct current in the ration of 2 to 4 volts. R.M.S. to 2.5 volts direct current, at current densities from about 2 to about 15 amperes per sq. ft. The plating bath may be in the proportions of copper sulphate 24 ozs. per gallon, sulphuric acid 6 ozs. per gallon, and glue # oz. per gallon. The frequency of the alternating current may be within the limits of about 25 cycles to about 60 cycles. Specification 597,426 is.referred to.
Patent GB-412659-A (GB)
Title: Self-closing fireproof doors
IPC: A62C2/14
Filed: 1933-01-26
Abstract: 412,659. Preventing fires. CRITTALL MANUFACTURING CO., Ltd., Manor Works, Braintree, Essex, and ALLEN, A. F., 98, Brockley Grove, Brockley, London. Jan. 26, 1933, No. 2575. [Class 47 (ii).] Relates to self-closing fire-proof doors of the kind in which the door is held normally from closing by latch mechanism embodying a fusible link or the like, and consists in latch mechanism which is adapted normally to engage the door automatically to hold it open and is capable of being moved independently by hand to release the door, whilst operation of a heat-sensitive device allows it to be turned out of the way of the door. As shown in Figs. 3 and 4, the leaves 1, 4 and 2, 3 of double self-closing doors are held in the open position by catches 8 pivoted on rods 9 in casings 11 at opposite sides of the doorway 6. In the open position, the inner leaves 2, 4 lie behind the outer leaves 3, 1, rollers 7 on the inner leaves engaging the rear surface of the outer leaves. A weight 14 suspended in each casing 11 and pivoted on the rod 9, has an adjustable screw 17 in engagement with the catch 7. The weights are connected by a cable 18 stretched across the doorway and embodying a fusible link. When the link fuses, the weights turn about the rods 9 and raise the catches 8, so that the doors close, the engagement of the rollers 7 with the leaves 1, 3 ensuring closing of the leaves in correct sequence. For manual closing of the doors, the catches are raised by hand, preferably simultaneously. The catches have a bevelled nose 12 to facilitate the opening of the doors. In a modification, Fig. 8, the catches are in the form of levers 25 pivoted on vertical pivots 28 and having hinged end portions 26 engaged by projections 30 on the leaves 1, 3. For manual closing of the doors, the portions 26 are raised by hand. As applied to double doors of the single-leaf in-folding type, one-door is retained by one of the catches described. above, and the other by an adjustable trip catch adapted to be tripped by the first door when closing. In the case of doors of the compartment type, Fig. 13, the doors 42, 43 are retained by catches 8 as described above, and the doors 44, 45 by catches 46 on rock-shafts 47, which are rocked by trip members 49 as the doors 42, 43 close. In the case of folding doors, Fig. 18, the door 50 is controlled by a catch 8 and the door 51 by a latch and trip mechanism 46, 49. The doors 52, 53 are held open by bolts 54, which are withdrawn by cables 55 attached to the doors 50, 51. Means for procuring the manual release of both catches 8 simultaneously, Fig. 21, comprises a rock shaft 56 carrying two levers 58, 59 which lie respectively above and below the two catches 8.