baber/WOPTO huggingface dataset:
Patent GB-1426357-A (GB)
Title: Hydraulic self-levelling device for a boom-mounted bucket
IPC: E02F3/43
Filed: 1973-04-25
Abstract: 1426357 Fluid-pressure servomotor systems INTERNATIONAL HARVESTER CO 25 April 1973 [2 May 1972] 19634/73 Heading G3P [Also in Divisions E1 and F2]  A control system for maintaining level a boom mounted bucket 112 during raising of the boom 110 comprises a double-acting fluid ram 20, a manually operable valve 18 controlling the flow of fluid from a pump 32 to the ram and a spool valve 10 further controlling the flow and positioned by a mechanical feedback linkage 46 connected between the bucket and the spool 16. In the position shown bucket 112 is at its lowest point and spool 16 is in its extreme rightwards or neutral position in which spool valve ports 22, 26 communicate to permit manual valve 18 to control flow via systems 'A' or 'B' respectively to either side 21 or 25 of ram 20 for dumping or rollback of bucket 112. The remaining spool valve ports 24, 28, 30 are closed. When boom 110 is raised, feedback linkage 46 moves shaft 42 leftwards which via shaft shoulder 54 causes corresponding movement of spool 16 against the action of spring 60. The spool thus cuts communication between ports 22, 26 but connects ports 24, 30 to permit high-pressure fluid to flow via lines 36, 36a to side 21 of ram 20. Further movement of spool 16 opens port 28 to permit fluid to be recirculated from side 25 to side 21 to prevent cavitation of the ram. The latter thus extends and levels bucket 112 as long as the boom is rising within a given height range. When boom rising stops, the feedback signal dissipates and spool 16 moves rightwards under the action of spring 60 into an equilibrium position in which  port 28 is closed but the remaining ports are open. Any fluid trapped at the righthand end of spool 16 flows through groove 76 and axial passage 74 to drain. The port sizes &c. are arranged such that should manual valve 18 now be set to a rollback position, the forces on ram 20 remain balanced and rollback is prevented. However should valve 18 be set to the dump position, high-pressure fluid is pumped via ports 22, 26 to side 21 of ram 20 causing dumping action of the latter. Simultaneously fluid is exhausted from side 25 via line 40. After initial movement of the bucket, feedback linkage 46 will cut the self levelling action of valve 10. The spool lands are provided with feathered edges 81 &c. to prevent pressure peaks which would cause chattering of the bucket.
Patent GB-1279962-A (GB)
Title: Improvements relating the attachment to a tube by welding of a smaller tube
Inventor: HULME JAMES
IPC: B23K13/02
Filed: 1968-04-25
Abstract: 1279962 Welding by pressure BABCOCK & WILCOX Ltd 3 July 1969 [25 April 1968] 19673/68 Heading B3R A tube has longitudinally attached thereto on one side by high frequency electric resistance welding a smaller tube and on the opposite side by high frequency electric resistance welding an elongated element, the elongated element being subsequently removed. The method of attachment is such that the smaller tube and element are simultaneously welded on in the same machine and as the tube leaves the machine the temperatures of its two sides are approximately equal. In an embodiment a ferritic superheater tube 1 is passed through a welding machine in which firstly a solid rod 18 is weakly welded to one side of the tube 1 and in which secondly an austenitic carrier tube 2 for a thermocouple lead is strongly welded to the other side of the tube 1. The rod 18 is fed through rollers 20 beneath a pressure roller 16, a reaction roller 17 being arranged to engage the tube 1 opposite the roller 16 and high-frequency current of, e.g. 100-500 kc. per sec. being supplied to the rod and tube by sliding contacts 22, 21. The pressure exerted by the roller 16 is small to produce only a weak weld. The tube 2 is fed between rollers 6 to a position beneath a pressure roller 3, a reaction roller 4 being arranged opposite the roller 3 and high-frequency current of, e.g., 100-500 kc. per sec. being supplied to contacts 8, 9 engaging the tubes. Following welding and cooling of the tube 1 the rod 18 is stripped off and a thermocouple lead is passed through the tube 2 and connected to a thermocouple located in or on the wall of the tube 2.
Patent GB-997594-A (GB)
Title: Improvements in or relating to the production of gearwheels
Inventor: HARTMANN HEINZ
IPC: B23F19/00
Filed: 1962-05-22
Abstract: 997,594. Gear cutting. ZAHNSCHNEIDEMASCHINENFABRIK MODUL VEB. May 22, 1962, No. 19695/62. Heading B3K. A method of producing crowned or conical tooth flanks on straight or spiral spur gears on a gear hobbing or grinding machine comprises adjusting the angle of inclination of the tool axis in relation to the tooth angle required and the helix angle of the hob or tool and then continuously varying the angle of inclination in conjunction with the feed movement of the tool. The distance between the tool and workpiece axis is not varied during the cutting operation. The machine to perform this operation comprises a pillar 1 with guides 2 and a slide 3 which carries an oscillating port 4 with a tool 6. A feed spindle 7 is connected to the slide 3 and to a crank disc 14 via bevel gears 8, 9 and change wheels 11, 12. Attached to the crank-pin 15 of the disc 14 is a variable length rod 16 which is connected to the arm 18 of the oscillating port 4. The angular setting of the tool is determined at the mean position of the tooth width as indicated in II in Figs. 2 and 3. When this has been effected, the tool is positioned at its starting location as in I in Fgs. 2 and 3, ready for the machining operation. Alternatively, the workpiece axis may be set up and its angle of inclination continuously varied so as to effect the crowning operation.
Patent GB-153666-A (GB)
Title: Improvements in artificial legs
IPC: A61F2/80
Filed: 1919-08-11
Abstract: 153,666. Snoaden, E. A. B. Aug. 11, 1919. Limbs, artificial.-Comprises a construction of bucket or casing for an artificial leg together with means for attaching the leg to the person. The bucket comprises one or more U-shaped strips h, the ends of which are secured to the interior surface of a channelshaped ring i. Padded segments k contact with the stump and are turned over at the upper end and clamped in the channelled part of the ring by a binding-strip j which is tightened by suitable means, for example by a pawl at one end engaging ratchet teeth on the other end. The casing of the limb is built up round the metal frame underneath the ring i, as follows. An inner layer of linen n is wound round the frame, and vertical strips n' of veneer are cemented to the linen. A coating of veneer comprising strips n<2> wound spirally round the limb is applied next. This may be the final coating, or the combination may serve as a basis for the application of other combinations of these three coatings, or any of them singly, until the desired stiffness is attained. The limb is attached to a waistbelt by a jointed metal strip or band d and a further elastic connexion g. The casing is built up on a core or former made in three parts, the two side parts having grooves to receive the U-shaped strips h and the central portion being made wedge-shaped to facilitate withdrawal.
Patent GB-1465960-A (GB)
Title: High strength corrosion-resist
IPC: C22F1/18
Filed: 1974-05-06
Abstract: 1465960 Zirconium-aluminium alloys ATOMIC ENERGY OF CANADA Ltd 6 May 1974 [11 May 1973] 19789/74 Heading C7A  A high-strength, corrosion resistant Zr-Al alloy suitable for use in nuclear thermal reactor applications contains with the balance being Zr and incidental impurities. The material is heat-treated in vacuo in the range 700-950C to ensure that there is at least a semicontinuous matrix of the intermetallic compound Zr 3 Al. The alloys, which may be homogenized at over 1200C after coating, may be hot worked without cracking at over 1000C prior to further working and/or annealing at 700-950C to develop a selected combination of properties.
Patent GB-320122-A (GB)
Title: Improvements relating to motor vehicle electric lamps
IPC: F21V17/00
Filed: 1928-07-07
Abstract: 320,122. Lucas, Ltd., J., Lucas, O., and Egginton, W. H. July 7, 1928. Lantern doors and door fittings.-In a vehicle lamp the lamp body a is provided at its front end with a spigot which is adapted to enter the beaded rear side of the front ring c and is formed around a portion of its circumference with a groove e with which the bead f can engage, and means are provided for securing the parts together. The groove may be formed in the upper part of the lamp body and may extend around about one-third of its circumference. The parts may be secured together by means of a hook-like catch g, Fig. 1, on the ring c engaging an inclined ledge f<1> on the lamp body, the ring being given a partial rotation to pull it tightly against the lamp body. The forward end of the catch g may be extended to serve as a guide when the ring c is being placed in position, and springs h may be provided for holding the catch in engagement with a recess in the ledge. Alternatively, a gapped plate m, Fig. 5, on the ring c may be engaged by a screw k carried by a swivel nut l on the lamp body. Specification 235,198 is referred to.
Patent GB-275233-A (GB)
Title: Improvements in jointing members for mercury vapour apparatus
IPC: H01J5/30
Filed: 1927-07-26
Abstract: 275,233. General Electric Co., Ltd., and Weintraub, E., (Assignees of Soc. Alsacienne de Constructions MÚcaniques). July 27, 1926, [Convention date]. Low-pressure metallic-vapour apparatus. - Jointing members for mercury-vapour apparatus comprise a metal foundation such as copper or aluminium coated with a layer of nickel, cobalt or chromium. such members being heated to such a temperature that the coating layer becomes alloyed with the foundation metal. The heating may be carried out in a vacuum or in a reducing atmosphere or the coated metal may be heated electrically. In an example, nickel-plated copper is heated to a temperature of 700‹ C. Specification 23775/12, [Class 39 (ii), Electric lamps. Incandescent], is referred to.
Patent GB-690268-A (GB)
Title: Improvements in or relating to refractometers
IPC: G01N21/43
Filed: 1951-08-22
Abstract: 690,268. Refractometers. GOLDBERG, E. Aug. 22, 1951 [Aug. 31, 1950], No. 19826/51. Class 97 (i). [Also in Group XL (b)] In a refractometer of the total reflection type one or more or all of the surfaces of the prism which are not used by the measuring beam, i.e. the function-less surfaces of the prism, are rendered non-reflective to prevent parasitic light reaching the observation position. Fig. 1 shows a dipping refractometer in which the surfaces 8, 10 of the prism 5 by which parasitic rays x, y are reflected to eyepiece 1, together with the measuring rays a, b, are made non- reflecting by a coating of dark varnish 9 protected by a layer 91 of metal, glass, fabric, or paper cemented thereto. Alternatively a layer of vitreous light-absorbing material may be fused or cemented on to the surfaces. Alternatively the surfaces may be coated with a quarterwave thickness of anti-reflection material. Fig. 5 shows a refractometer in which the liquid to be examined is placed upon the surface 24 of the prism 22 and is enclosed by a lid 25 which also diffusely reflects light from a source 28 to form the measuring beams a, b which pass, via a prism 32 to the eyepiece. The surface 33 of the prism 22 is made non-reflecting. Modifications are described in which the prism 22 and light source 28 are reversed in position, the liquid to be examined engaging the underside of the prism and a diffusely reflecting plate being provided spaced from the lower surface of the prism. The prism 32 may be replaced by a mirror which may be pivoted to allow of examination of different ranges of refractive index. Alternatively the rays a, b may reach the eyepiece direct from the measuring prism. The modification shown in Fig. 6 permits automatic recording. Light from the prism passes to a reflector or prism 34 pivoted at 36 and is directed through a slit 35 to a photocell 41. The mirror 34 is adjusted manually or by servo mechanism 37 until the division line between light and dark in the beam from the refractometer prism falls on the slit 35, the position of the reflector, indicated on a scale 40, giving a measure of the refractive index.
Patent GB-221488-A (GB)
Title: Improvements in wall paper printing machines
IPC: B41F1/08
Filed: 1924-08-22
Abstract: 221,488. Anquetin, J. Sept. 8, 1923, [Convention date]. Platen machines.-In a machine for printing coloured designs on a number of webs of wall paper, the latter are drawn intermittently from supply rolls over a printing-table provided with felt blocks of adjustable height and are printed by printing-plates mounted in a frame carried by parallel levers which swing the printing-plates to and fro between the printing-table and felt inking-pads, the webs being then rewound after passing over drying-apparatus. The frame 71, Figs. 11 and 12, carrying the printing- plates 72 is mounted on pairs of parallel levers 56, 57 swinging on parallel shafts 58, 61, the shaft 58 being rocked by means of a cam 84 and link 80, Fig. 9, to move the frame over the inktrays 31 and then back over the printing-table 5. A wavy portion of the cam 84 causes the printing- plates to be beaten down several times during inking. When the frame 71 arrives in position over the printing-table 5, it is pulled down to effect the impression by 'drawing-rods 73, 74 terminating in spindles 75, 76, which at that time are engaged by hooks 89, Fig. 10, on links 88 actuated by means of cams 94, 95 and levers 87 and guided by pins 90 moving in grooves 91. After the impression, the left-hand drawing-rod is released from its hook some time previous to the right-hand line, whereby the frame 71 is raised obliquely from the printed webs, as shown in Fig. 11. The, printing-table 5, Fig. 12, comprises an aggregation of adjustable felt blocks 3. Ink-apparatus.-Ink is applied to each printing- plate by a layer of felt 36, Fig. 6, in a tray 31 which may be filled with water 33 to the level of a skin 34 stretched below the felt. Ink is supplied to one end of the felt by a long brush 45 on an arm 46 which is oscillated to and from a supply trough 43 by means of a cable 48 connected to the lever 57, and is distributed along the felt by a brush 51 reciprocated by a weight 53 and cable 52 attached at 54 to the lever 57.
Patent GB-223342-A (GB)
Title: Improvements in warp or straight bar knitting machines and the production of fabricsthereon
IPC: D04B23/12
Filed: 1923-08-03
Abstract: 223,342. Mellor & Sons, Ltd., M., Pare, F. W., and Coombes, W. Aug. 3, 1923. Warp machines.-In the production of warp fabric containing weft, positive means, independent of thread tensioning means, are provided to prevent the weft fouling the needles, thus enabling inferior yarns to be worked. The weft carrier 6, which is given harmonic motion, lays the thread 5 behind the needles where it is supported upon a fixed grid comprising wire or plates 8 projecting from the work bar 7 and alternating with the needles 1. A movable grid, comprising wire or plate members 9 and moved in a circular path by an eccentric on the main shaft 11, then operates to lay the weft 5 on the work bar 7 in front of the needles 1 which then rise and engage the warp threads 3 forming knitted loops embracing the weft, the movement of the grid 9 being timed so that the weft is not placed on the work bar 7 before the needles have moved below the fixed grid 8. In order to avoid fouling at the ends the movable grid 9 is extended beyond the end needle so that the free weft, beyond the width of the fabric, is caused to form a loop embracing the last plate or wire of the grid 9. An interceptor member 10, actuated by an eccentric on the shaft 11 through a link 14, is then partially rotated so that a nose 10<a> thereon presses back the weft and as the grid 9 recedes the weft loop thereon is arrested by the interceptor which is withdrawn, when the needles have fallen below the point at which fouling may occur, and the weft loop has been released to form a selvedge. In order to interrupt the laying of the weft, without interrupting or diminishing the speed of any part of the machine, the eye of the carrier 6 is open and! a pivoted deflecting member 18 may be operated to position the weft so that it escapes from the carrier eye, the deflecting member being preferably operated by a travelling chain actuated from the main drive 11. The needle bar 2 and warp guide bar 4 are operated by eccentrics on the main shaft 11.
Patent GB-864632-A (GB)
Title: Thionophosphonic acid esters
IPC: C07F9/40
Filed: 1958-06-20
Abstract: The invention comprises compounds of the formula: RP(S)(OR1)(OAlkSR11) wherein R is a phenyl, chloro-substituted phenyl, or C1-C6 alkyl radical, R1 is a C1-C6 alkyl radical, R11 is a C1-C6 alkyl group, and Alk is a C2-C6 alkylene radical.  They may be obtained by reacting an appropriate thionophosphonic acid ester chloride with an appropriate alkylmercapto alkanol.  The reaction is preferably carried out in the presence of an acid binding agent, e.g. a tertiary amine such as pyridine, and an organic solvent e.g. benzene, toluene, acetone or chloroform may be present.  Examples are given for the production of (1) C6H5P(S) (OCH2CH2SC2H5)(OCH3), (2) C6H5P(S) (OC2H5)(OCH2CH2SC2H5), (3) p.Cl.C6H4P(S) (OC2H5)(OCH2CH2SC2H5), (4) p.Cl.C6H4P(S) (OCH3)(OCH2CH2SC2H5) and (5) CH3P(S) (OC2H5)(OCH2CH2SC2H5).  The products are stated to be effective pesticidal agents (see Group VI).  Specification 806,148 is referred to.ALSO:A pesticidal composition comprises as active ingredient one or more thionophosphonic acid esters of the formula R.P(S)(OR1)(OAlkSR11) wherein R is a phenyl, chlorosubstituted phenyl, or alkyl radical containing 1 to 6 carbon atoms, R1 is a C1-C6 alkyl radical, R11 is a C1-C6 alkyl radical, and Alk is a C2-C6 alkylene radical (see Group IV (b)) and a solid or liquid carrier or diluent.  Known insecticides and/or fertilizers may also be present. Specified diluents are talc, chalk, bentonite, clay, water (if necessary with an emulsifier e.g. benzyl hydroxy diphenyl polyglycol ether), alcohols, ketones and liquid hydrocarbons.  A particularly useful active ingredient is the compound p.Cl.C6H4.P(S)(OCH2CH2SC2H5) (OCH3).  Specification 806,148 is referred to.
Patent GB-938074-A (GB)
Title: Improved apparatus for electrically charging the products of fuel combustion
IPC: B03C3/38
Filed: 1962-05-24
Abstract: 938,074. Flame charging apparatus. GENERAL ELECTRIC CO. May 24, 1962 [May 26, 1961], No. 19994/62. Class 117. In apparatus in which aerosol particles are charged by passing them through a flame sustained from an electrically charged electrode, and comprising a porous electrically conductive member 11 having an electrically insulated gaseous fuel supply inlet 14 and an electrical terminal 15 for applying a high voltage to the member 11, the fuel will seep through the porous member and will sustain combustion on its surface. The member 11 is of hollow construction with end plates 13 e.g. of stainless steel and porous surfaces 12 e.g. of pig iron or ferrite, upon which surfaces combustion of the gaseous fuel is maintained. The combustion produces positive and negative ions, those ions of opposite charge to that of the member 11 being attracted back to the member. Flat e.g. stainless steel plates (not shown) are disposed above and below and parallel with the surfaces 12 and are preferably earthed so that the ions of the same polarity as that of the member 11 will be attracted to the flat plates. The aerosol particles are introduced between the member 11 and the flat plates and collide with the ions, become charged and are collected by the earthed flat plates. In an alternative construction (Fig. 3, not shown) the member 11 may be cylindrical and the earthed plates may be shaped to conform to the shape of the member 11.
Patent GB-224005-A (GB)
Title: Improvements in or relating to means or apparatus for transporting barrels or casks
IPC: B60P1/64
Filed: 1923-08-04
Abstract: 224,005. Greenwood & Batley, Ltd., and Carrick, J. H. Aug. 4, 1923. Electrically-propelled road cars and wagons.- A truck having barrel supporting arms 27 at one end and a platform 24 for other goods is propelled by a motor 25 supplied with current by accumulators mounted on the platform 119. The wheels adjacent to the driver's platform 23 are steered by known mechanism and the other wheels are driven in the usual way through differential gearing. Brake levers for a pulley 121 on the shaft of the motor 25 are actuated by a bell-crank lever 122 connected by a rod 123 and arm 124 to a spindle 125 on which a treadle 126 is fixed. Another arm 127, Fig. 12, on the spindle is connected by an adjustable rod 128, bell-crank lever 129, rod 131 and arm 132 to the spindle of the main controller cut-out. The treadle may be returned by a spring to its highest position when the driver's foot is removed.
Patent GB-767988-A (GB)
Title: Improvements in or relating to circuits comprising gas discharge tubes
IPC: H05B41/30
Filed: 1954-07-08
Abstract: 767,988. Cold-cathode tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 8, 1954 [July 8, 1953], No. 20011/54. Class 39(1). [Also in Group XL(b)] A cold-cathode thermionic anode-tube comprises a nickel rod cathode 11 and an anode 12 in the form of a tungsten helix coated with barium-strontiumcalcium oxide obtained by the decomposition of carbonates and surrounded by a semicylindrical screen 15. The tube is filled with xenon at a pressure of 50 cm. of mercury and the distance between the anode and cathode is 15 mm. The tube may be used in a vehicle overtaking signalling system (see Group XL(b)) to produce a transient flash of light having a waveform with a very steep edge or edges which is capable of producing a signal in a photo-electric device comprising a suitable amplifier. A voltage, which cannot alone cause ignition at the given pressure and electrode spacing, is applied to the tube and ignition is initiated by heating the anode to a temperature such that ions are emitted.
Patent GB-1115341-A (GB)
Title: Improvements relating to roof supports for mine workings
IPC: E21D23/00
Filed: 1964-05-14
Abstract: 1,115,341. Hydraulic jacks. K. M. GROETSCHEL. 16 Aug., 1965 [14 May, 1964], No. 20054/64. Heading B8J. An hydraulic roof support with inner and outer sections 59, 58 is supplied with fluid at a pressure up to a predetermined limit from a source (not shown) which may be a power-driven pump or hand or foot pump through an inlet pipe 54, a T-junction 55 and pipes 56, 57. The pipe 56 has a manually operated stop valve 60, a relief valve 61 which opens at a pressure greater than the supply pressure, i.e. due to roof descent, and a pressure gauge 62. The pipe 57 has a manually operated stop valve 63, a relief valve 64 set to open at a pressure lower than the supply pressure, a pressure gauge 65 and a non-return valve 66. For lowest preload valve 60 is shut, valve 63 opened and the pump pressure increased until the relief valve 64 opens. For higher preload stop valve 63 is closed, stop valve 60 opened and pressure can then be supplied up to the predetermined limit of the pump as set by its own relief valve (not shown). The relief valve 64 may be adjustable so as to be set to any of a plurality of selected blow-off pressures below that of the relief valve of the pump. An operative connection, shown as a broken line, may be provided between valves 64 and 63 so that the latter is closed when the former blows-off. The T-junction 55 may be replaced by a manually operated rotary valve including an exhaust pipe 67.