baber/WOPTO huggingface dataset:
Patent GB-168301-A (GB)
Title: Improvements in means for regulating two-stroke internal combustion engines
IPC: F02D15/00
Filed: 1921-04-20
Abstract: 168,301. Santagiuliana, A. Aug. 25, 1920, [Convention date]. Regulating; valvegear. - In a twostroke - cycle engine compressing the new charge in the crank case, a full charge is introduced into the cylinder at all loads so as to ensure complete scavenging, and governing is effected by returning part of the charge to the crank case during t h e compression stroke through a valve 10 in the cylinder head. As shown, this valve is actuated when necessary by an overhead lever and a tappet rod which is engaged by a rocker 18, Fig. 3, pivoted at 17 on the end cover 8' of the crank case. The rocker 18 carries a roller 19 engaged by a cam on the crank-shaft, and the pivot 17 is carried by a disc 15 adjustable about the shaft. When the pivot 17 is in the line of movement of the tappet-rod, the oscillation of the rocker does not open the valve 10, but the disc 15 may be turned so as to displace the pivot 17 until the valve 10 is opened to the required extent.
Patent GB-912922-A (GB)
Title: Apparatus for continuously obtaining dry materials by evaporation
IPC: A23C1/12
Filed: 1959-04-03
Abstract: Solid material, e.g. caustic soda, aluminium oxide, milk powder, egg powder, is separated in a finely-divided state from admixture with liquids by means of an evaporator comprising a cylindrical vessel 1 heated by jackets 2, a rotary shaft 3 carrying a circular trough 10d for distributing the liquid composition over the upper end of the inner surface of the evaporator, and wipers 6 mounted on pivots 7 between rings 20 attached to arms 21 which extend radially at spaced intervals along the rotary shaft.  As the shaft rotates, an edge of each wiper presses <PICT:0912922/III/1> against the hot inner surface, and the liquid is spread out in thin layers as it flows downwards.  The thickness of the wipers, and therefore the contact-pressure against the inner surface, increases in a downward direction (cf. Figs. 2 and 5).  Thus there is a series of evaporating zones, and the thickness of the liquid layer in any zone (except the uppermost) is less than the thickness of the layer in the immediately preceding zone. Alternatively, the desired change in thickness of the liquid layers can be obtained by providing wipers that extend different distances inwardly from their pivots, as shown in Fig. 6. The liquid is introduced into the evaporator through inlets 15; and the evaporated vapours leave through discharge 18.  The dry solid is discharged in powder form through opening 17.  Example 1 relates to the evaporation of a 50% solution of caustic soda at a temperature of 200 DEG C. and an absolute pressure of 25 mm. Hg. Example 2 relates to the evaporation of a suspension of aluminium oxide in toluene.
Patent GB-556376-A (GB)
Title: Improvements in or relating to milling or like cutters
IPC: B23C5/08
Filed: 1942-08-15
Abstract: 556,376. Milling-cutters &c. B.S.A. TOOLS, Ltd., and OGILVIE, W. Aug. 15, 1942, No. 11452. [Class 83 (iii)] A milling or like cutter is built up of a ring 1 of high-speed steel or carbon steel with peripheral and/or side cutting teeth 2, 3, the rmg being secured, as by taper pegs 5, to a resilient intermediate member 4 made of material comprising alternate layers of synthetic resin and fabric bonded together. The member 4 is recessed to receive the flanges 8 of a central bush 7 which is secured to the member 4 by rivets 11 and has a keyway 12 for mounting the cutter on a spindle.
Patent GB-843986-A (GB)
Title: Improvements relating to metal drums and their manufacture primarily for containing beer
Inventor: MACKENZIE ALEXANDER ROLF
IPC: B65D8/06
Filed: 1958-04-11
Abstract: 843,986. Metal drums. PAYTER & CO. Ltd., E. C. April 6, 1959 [April 11, 1958], No. 11501/58. Class 66. A metal drum comprises an open-ended outer casing a of mild steel and a removable inner container b of stainless steel. Channel members a4 on the outer casing are for securing rubber pads a5 and further pads a7 are carried by a cradle as attached to a lower chime ring a2. Fastenings as attached to the top of the inner container at as are pivoted on the outer casing. A ring b1 on the inner container carries a member b2 through which carbon dioxide is introduced into the inner container. According to the Provisional Specification an extension of the base of the inner container co-operates with an extension on the cradle, the extensions being secured together by a bolt.
Patent GB-801366-A (GB)
Title: An improved frictional gripping device for use with screw threaded members
Inventor: BARNETT AARON
IPC: G05G1/00
Filed: 1955-04-21
Abstract: 801,366. Locking nuts. CLANG, Ltd. April 20, 1956 [April 21, 1955], No. 11538/55. Class 89(1) [Also in Group XXXVII] A self-locking nut to hold a screwedmember 1 in any adjusted position, comprises a U-shaped member 9 having one limb 10 secured to a mounting 4, and the other limb 12 split. The two split-parts 15, 16 are bent apart to a greater or less extent than the helix-angle of the thread of member 1, and are shaped to engage the thread. Specification 797,759 [Group XXXVII] is referred to.
Patent GB-527596-A (GB)
Title: Improvements in and relating to fare indicators for vehicles
IPC: G07B13/00
Filed: 1939-04-15
Abstract: 527.596. Taximeters. KIENZLE APPARATE AKT.-GES. April 15 1939, No. 11544. Convention date, Feb. 21. [Class 106 (iii)] In a taximeter having its free sign arranged at a distance the latter is moved from either position into the other by two Bowden wires 5a and 5b moved by levers 23 and 24 co-operating with a cam 25 actuated by the member by which the taximeter is connected or disconnected. When the free sign is moved into either position it puts a spring under tension. The free sign may be illuminated by a lamp controlled by a switch operated by the sign-operating mechanism.
Patent GB-845764-A (GB)
Title: Improvements in or relating to the colouring of nitrogen-containing fibrous materials
IPC: D06P1/12
Filed: 1957-04-09
Abstract: Nitrogenous fibres such as wool, silk, nylon and poly-acrylonitrile fibres are coloured by applying a hot, aqueous bath containing 2-12% by weight of the fibres of sulphuric or hydrochloric acid and 0,5-8% by weight of the fibres of an aminonaphthol mono- or di-sulphonic acid or a naphthylamine mono-, di- or tri-sulphonic acid, and then applying a cold aqueous bath containing 0,5%-3% by weight of the fibres of sodium nitrite. Modified permanent colours are obtained by subsequent treatment in a bath containing a coloured inorganic salt, e.g., copper, nickel or cobalt sulphate or chloride, or potassium bichromate, together with ammonia or sulphuric or hydrochloric acid. Numerous examples describe the colouration of wool and nylon fibres.
Patent GB-1049081-A (GB)
Title: Electromagnetic relay with reed contacts
IPC: H01H51/28
Filed: 1965-03-19
Abstract: 1,049,081. Electromagnetic relays. STANDARD TELEPHONES & CABLES Ltd. March 19, 1965 [March 21, 1964], No. 11735/65. Heading H2B. A polarized relay has its permanent magnet forming part of a hollow sealed contact container. As shown the permanent magnet tube 2 is sealed by magnetically conductive, electrically insulating plugs 3 in which the contact reeds 1 are secured. The permanent magnet flux may be insufficient to operate the contacts against the inherent spring bias but sufficient to retain the contact closed after closure due to energization of a surrounding coil 6. With this arrangement the release is effected by current passing in the permanent magnet tube between terminals 4. Alternatively the permanent magnet flux may be sufficient to close the contacts in the absence of other flux so that the contacts are open only when current passes between terminals 4, the coil 6 being omitted in this case. A conducting coating 9 may be deposited on the inside of the tube and may be divided longitudinally if the lagging effect of the conductor encircling the contacts is undesirable (Fig. 4, nor shown).
Patent GB-180174-A (GB)
Title: An improved variable-speed and reversing gear
IPC: F16H29/08
Filed: 1921-04-23
Abstract: 180,174. Litster, R. H. April 23, 1921. Variable-speed ratchet gearing comprises two sets of spindles E, J parallel to driving and driven shafts A, N, Fig. 1, a heart-shaped cam C, Fig. 2, secured to the shaft A engages cranks D on the spindles E so as to oscillate these spindles. Cranks H on the spindles J engage grooved blocks F on the spindles E. The spindles E are supported in a drum f which can be turned relatively to the fixed bearing-discs g, h of the spindles J, so that there is a change at the connections F, H, and the spindles J are oscillated with amplitude which varies. Toothed gears P are driven at variable speeds through ratchet connections p<1>, Fig. 3, and one of these gears always drives a central gear M on the shaft N. The connections p' comprise balls coacting with an inner set of pockets and an outer set of teeth. The drive may be imparted to a tail-shaft S through bevel clutch reversing-gearing R<2>, O, R'. Reference has been directed by the Comptroller to Specifications 6344/08, 15326/08, and 16024/10.
Patent GB-541921-A (GB)
Title: An improved method of manufacture of structural elements from veneers
IPC: B27D3/02
Filed: 1940-07-16
Abstract: 541,921. Wood, shaping by pressure. PARNALL & SONS, Ltd., and GABB, A. H. July 16, 1940, No. 11745. [Classes 145 (i) and 145 (ii)] Structural wooden elements are made from superimposed layers of veneers formed or shaped by means of a press to the desired shape, for example, channel'section, the material being subjected to a heat treatment in the press and while still in the press to a cooling treatment.
Patent GB-1408662-A (GB)
Title: Launcher for toy rocket
Inventor: GREEN CHARLES JAMES
IPC: A63H27/26
Filed: 1973-02-24
Abstract: 1408662 Toy rocket launchers ESTES INDUSTRIES Inc 24 Feb 1973 11768/75 Divided out of 1408661 Heading A6S The disclosure corresponds to that of Fig. 1 and Figs. 4 to 7 of Specification 1408661, and the claims are directed primarily to a toy rocket launcher comprising a body having an upwardly-facing platform for receiving the end of a propulsion nozzle of a toy rocket, the body having a channel communicating between the exterior of the body and the platform for use when refueling a rocket mounted on the launcher, a resilient seal positioned on the platform and having an opening which is in communication with the channel in the launcher body, the opening also being arranged to communicate with the nozzle of a rocket when positioned on the platform, and a releasable latch movably mounted in the body for retentively engaging a rocket nozzle in sealing engagement with the seal member, the latch being movable between a nozzle retention position and nozzle release position.
Patent GB-1235484-A (GB)
Title: Voltage sharing networks for series chains of rectifiers
Inventor: KING KENNETH GORDON
IPC: H02M1/088
Filed: 1968-03-12
Abstract: 1,235,484. Static converter systems. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. 28 Feb., 1969 [12 March, 1968], No. 11971/68. Heading H2F. A series chain of rectifiers, e.g. semi-conductor controllable rectifiers, is provided with a voltage sharing network comprising a capacitor in series with half of a centre-tapped inductor across each rectifier as shown, Fig. 1. The capacitors C1, C2 &c. limit transient voltages within the converter, e.g. produced because some rectifiers turn ON more rapidly than others or some have a shorter recovery time than others, the rectifiers in the higher impedance condition being subjected to most of the supply voltage. The capacitors are charged by the forward applied voltage and when a respective rectifier is triggered the rate of the resulting discharge current of the capacitors is limited by the inductors as otherwise damage to the rectifier might be caused. Alternatively, as shown, Fig. 4, each capacitor except the end ones in the chain, is divided in two, each capacitor portion being in series with a different inductor portion forming two shunt paths across the respective rectifier. Since the discharge currents of C1, C2 for example, are in the same direction through the common centre-tapped inductor L1, this ensures by transformer action of L1 that any change in voltage across one rectifier in a pair (say TR1) tends to produce an equal change in voltage across the other (TR2) in that pair. Thus the inductors do not inhibit the voltage transient sharing effectiveness of the capacitors.
Patent GB-1158162-A (GB)
Title: Rotary Auger Mining Cutter
IPC: E21C25/58
Filed: 1966-06-13
Abstract: 1,158,162. Mineral-mining boring heads. SALEM TOOL CO. 13 June, 1966 [29 July, 1965], No. ,12007/69. Divided out of 1,158,161. Heading E1F. A cutter assembly for use in a rotary, auger type mining cutter comprises a drive shank that is insertable into an axially extending socket in the leading end of the auger type cutter, a base transversely secured to the leading end of the shank, a substantially semicylindrical drum with inner and outer arcuate walls 57, 62 of which each wall has a leading, cutter-carrying arcuate edge and a trailing arcuate edge that is secured to the base. The leading edges may be stepped. Specification 1,158,161 is referred to.
Patent GB-812513-A (GB)
Title: Adjustable coupling assemblies
IPC: F16B5/00
Filed: 1957-04-12
Abstract: 812,513. Bolted joints. DAVIS, A. M. April 12, 1957 [Aug. 21, 1956], No. 12038/57. Class 83 (4). [Also in Group XXVI] An adjustable coupling assembly comprises a first member 10 for securing to a second member 11, a slidable adjusting block 15 adapted to lie between the members, adjacent faces of the block and the second member having interengaging parallel serrations 26 arranged parallel to the longitudinal axis of the block, the opposite face of the block and the adjacent face of the first member having serrations 27 lying at an angle to the longitudinal axis of the block, an aperture 16 in the first member 10 for receiving securing means, e.g. a bolt 13, a slot 14 in the block and a slot 23 in the second member 11 having a width equal to the bolt 13 and a length extending normal to the serrations 26 of about two to three times the bolt diameter. In an embodiment the first member is a strut 10 for supporting the tailcone 11 in the tailpipe 12 of an axial flow gas turbine engine, the tailcone 11 being the said second member. The width of the slot 14 in the adjusting block is greater than the diameter of the bolt to allow for longitudinal motion of the block along the inclined serrations 27. The length of the slot 14 is approximately twice the bolt diameter. In operation, by sliding the block along the serrations 27, the strut 10 may be adjusted in an axial direction and the slot 23 in the tailcone allows movement of the bolt in this direction. When the members have been finally positioned and bolted together a hole 28 is drilled through the exposed portion of the block 15 and into the tailcone 11 for receiving a metal pin 29 in a force fit to lock the members together.
Patent GB-418453-A (GB)
Title: Improvements in or relating to the manufacture of yarns or threads
IPC: D01G1/08
Filed: 1933-04-25
Abstract: 418,453. Stapling continuous filaments. BRITISH CELANESE, Ltd., 22, Hanover Square, London, DICKIE, W. A., and TYCE, G. C., c/o British Celanese, Ltd., Spondon, near Derby. April 25, 1933, No. 12052. [Class 120 (iii).] To increase the strength of staple fibre yarns made from continuous artificial filaments particularly of cellulose acetate &c., the filaments before conversion to staple fibre are subjected to a stretching operation while in the softened condition as produced by an organic softening agent, the stretching taking place either continuously with the manufacture of the filaments or as an operation separate from such manufacture. By the stretching, the strength of the filaments is increased ; at the same time their denier is reduced. Stretching may be carried out according to the processes of Specifications 277,089, 323,790, [both in Class 120 (iii)], 370,430, and 371,461, and the filaments are preferably stretched to 200 per cent or more. Suitable softening agents are acetone, ethylene methylene ether, dioxane and similar cyclic ethers. The continuous filaments may be converted into staple fibre by cutting; or they may be passed through breaking rolls so as to rupture the filaments, the mass of fibres being treated either as a roving or converted directly into a spun yarn. The breaking rolls may be as described in Specifications 410,805 and 417,326. To restore the extensibility lost during the stretching operation, the continuous filaments or the spun yarn may be subjected to the conditioning treatment of Specification 411,506. Specification 417,325 is referred to in the Provisional Specification.
Patent GB-558027-A (GB)
Title: Improvements in and relating to electric frequency dividing systems
IPC: H03B19/03
Filed: 1942-08-27
Abstract: 558,027. Converting. TELEPHONE MANUFACTURING CO., Ltd., and DRAKE, B. Aug. 27, 1942, No. 12103. [Class 38 (ii)] A sub-harmonic frequency reducer adapted for example to reduce the frequency of a singlephase input to one third, has a corresponding number of branches, i.e. in this case three branches (a), (b), (c) containing non linear reactances L1, L2, L3 adapted to be set into oscillation with suitable relative phase displacement at the sub-harmonic frequency. The branches may contain transformers T1, T2, T3 and the secondary windings 4, 5, 6 of these constitute a three-phase system in mesh connection, which is adapted to produce a single phase sub-harmonic output current by coupling to it windings 1, 2 and 3 arranged so that winding 1 is in phase opposition to the connected windings 2 and 3 and has half the number of turns of either. In the arrangement of Fig. 6, the converter is started by means of an external three-phase low frequency source 7, 8, 9 which is eventually disconnected by a relay S/3. In a modification, Fig. 7 (not shown) starting is effected by means of a motor operating contacts to give properly timed starting impulses. In another modification, Fig. 5 (not shown), starting is effected by similar means to those described in Specification 548,441 and relays are provided to enable fresh attempts to be made if the first attempt does not produce the oscillation at the correct phase displacement. The three iron-cored inductances L1, L2, L3 or the transformers T1, T2, T3 may form one magnetic unit, Figs. 8, 9 (not shown).
Patent GB-1203692-A (GB)
Title: Method of welding wires
Inventor: JEFFS JOHN ROBERT
IPC: B23K20/02
Filed: 1968-03-13
Abstract: 1,203,692. Welding by fusion and pressure. ROLLS-ROYCE Ltd. 6 March, 1969 [13 March, 1968], No. 12193/68. Heading B3R. The ends of wires 10, 11 are welded together by (i) placing the wires end-to-end within a sleeve, (ii) heating at least the adjacent wire ends so that they become welded together, and (iii) removing the sleeve. The wires may be thermocouple or strain gauge wires, e.g. 0À001 inch diameter. The wires 10, 11 are placed within an inner sleeve 13 so that they abut substantially centrally of the sleeve bore 12. To facilitate such centring, one of the wires may be tagged at a distance from its end of half the sleeve length. The inner sleeve may be of thickness similar to the wire diameter, its bore may be flared at its ends 15 to facilitate wire entry, and, to hold the wires firmly during welding, its bore diameter may be only slightly larger than the wire diameter. To provide rigidity for the arrangement during welding, an outer sleeve 16 of substantial thickness is slidden over the inner sleeve. Both sleeves may be of ceramics. To weld the wires, the outer sleeve is heated, e.g. by oxy-acetylene flame and the heat is conducted to the inner sleeve bore 12 to fuse the wires together. Axial pressure on the wires may be necessary. The outer sleeve is then slidden off the inner sleeve, and the latter is removed by crushing since end thickening of the wires prevents removal by sliding.
Patent GB-281166-A (GB)
Title: Combined switch and support for electric flat-irons
IPC: D06F79/02
Filed: 1927-05-06
Abstract: 281,166. Genttner, F. May 6, 1927. Switches, quick-break; retractive switches; contacts.-In a frame a is pivoted a plate b controlled by two springs o tending to maintain two sets of contacts e, k in engagement. The contacts e are mounted on spring bolt f in a sleeve g on the underside of the plate b and are shaped at m to be engaged by the springs k which are insulatingly mounted on the part z of the frame. When an iron is put on the plate b it oscillates and lifts the sleeves g, and when the springs h are sufficiently tensioned, the contacts e leave the contacts k. The springs o remake the circuit when the iron is removed. The other part of the frame a can be used for supporting the iron while it is heating up. The positions of the contacts e, k could be reversed, if desired.
Patent GB-853438-A (GB)
Title: Time control switches
Inventor: SMITH WILLIAM HERBERT
IPC: G04F3/06
Filed: 1956-04-20
Abstract: 853,438. Interrupters. TRIANCO Ltd. April 17, 1957 [April 20, 1956], No. 12207/56. Class 38 (5). A cam 3 rotatable by, for example, a synchronous motor, has three recesses 5 in its periphery which, by means of cam followers 10, release pendulums 7, 8 alternately, the pendulums carrying pins 9 which engage the ends of resilient operating levers 11 of micro-switches 12. Operation of the latter occurs after the pendulums have passed their lowermost position and the switches restore when the pendulums swing outwardly with the cam follower at rest on the cam periphery. The cam may be interchangeable for varying the timing and gearing may be provided between it and the motor for the same purpose. The Specification refers also to intermittent operation of the motor under control of a fan supplying forced air to a boiler.
Patent GB-544408-A (GB)
Title: Sound reproducing devices
IPC: G11B3/46
Filed: 1940-07-30
Abstract: 544,408. Gramophone stylus arms and mountings. SCHUMANN, A. July 30, 1940, No. 12344. [Class 40 (ii)] [Also in Group XXXIX] In a gramophone sound box or pick-up, the stylus 9 is retained in its holder by a non- resilient member adjustable in relation to the casing 4, for example, by a clamping screw 10 the clamping thrust being applied in a line coincident with the pivotal axis of the stylus holder. In one form Fig. 1, the rear portion of the holder 7 straddles a rod 8 mounted in the opposite walls of the casing and surrounded by a resilient sleeve 11. In another form, Fig. 4, the holder 12 is formed with a spigot portion 13 mounted within a thrust bearing 15, a rubber washer 18 being interposed between the bearing and the shoulder 17 of the holder 12. The retaining force may be transmitted to the stylus through a resilient device and means provided for limiting the maximum force that can be applied to the stylus. The stylus holder may be connected to a piezo-electric crystal 5, Fig. 1, mounted for torsional vibration, or to the armature 20, Fig. 4, of a magnetic system 22.
Patent GB-882346-A (GB)
Title: Improvements in or relating to expandable rivets
IPC: F16B19/10
Filed: 1960-04-07
Abstract: 882,346. Rivets. OLYMPIC SCREW & RIVET CORPORATION. April 7, 1960 [Jan. 14, 1960], No. 12360/60. Class 89(1). A rivet comprises a body 15 with a head 17 and a slit shank 18, and a pin 16 having a larger diameter part 30 and a smaller diameter part 31 engaging corresponding bores in the body. In use, the pin is driven into the body so that end 36 spreads the fingers formed by the slits in the shank, and part 30 enters the smaller diameter bore to expand the shank to fill the holes through which it passes. Ribs 32 on pin part 30 hold the pin and body in assembly before use.