baber/WOPTO huggingface dataset:
Patent GB-1064144-A (GB)
Title: Mobile track packing and levelling machine
IPC: E01B27/17
Filed: 1963-10-25
Abstract: 1,064,144. Levelling rail track. F. PLASSER, [trading as FRANZ PLASSER BAHNBAUMASCHINEN]. Oct. 25, 1963 [Nov. 21, 1962], No. 42191/63. Heading B1G [Also in Division G1] A mobile track packing and levelling machine 1 for the longitudinal levelling of a railway track and using at least one straight reference line 7 defining the desired position of a line of rails 3, comprises a track lifting device 6 and a vertically movable, measuring device 17 which co-operates with the line 7 to indicate the actual position of the line of rails the device 17 being arranged on a carrier 15 which extends in the direction of movement along the track and is supported on the upper surface of the rail 3 to be levelled by means of two spaced supports 12. This arrangement serves to eliminate the effect of sagging occurring between the track lifting device 6 and the front axle 2 of the machine. The reference line 7 is provided between a light transmitter 8 supported on a lever 10 carried by the axle 2 and a skid 11, and a light receiver 8' carried for example on an advance truck. The device 17 is constructed as a shutter to intercept the light beam between the parts 8, 8', and is adjustable by means of a handwheel 17'. The two supports 12 for the carrier 15 are mounted on skids 13 and the carrier 15 is held down in contact with the supports 12 by a piston and cylinder arrangement 21 and is held steady by a shock absorber 16. In use the track is lifted by the device 6 until the device 17 indicates that the correct position has been reached, when the track ballast is packed by tools 5 arranged in the region of the supports  12.
Patent GB-913075-A (GB)
Title: Improvements in or relating to ball or float valves
IPC: F16K31/30
Filed: 1959-12-11
Abstract: 913,075. Valves. HOLMES, S. G. March 6, 1961 [Dec. 11, 1959], No. 42289/59. Class 135. A ball or float valves comprises a wedgeshaped closure member 12 co-operating with corresponding seats at the inner ends of aligned inlet and outlet passages 15, 16, the casing 17 of the valve having a mounting 23 for a pivotal float-carrying lever 13 which engages a valve spindle 18 to open and close the valve.
Patent GB-1434207-A (GB)
Title: Method of cold forming steel rods
IPC: B21C3/08
Filed: 1973-09-07
Abstract: 1434207 Profiling metal rod TETRACERO SA 7 Sept 1973 42305/73 Heading B3M Apparatus for cold rolling ribs on steel rod includes a cylindrical housing 6 which supports skewed rolls 10 and rotates about a fixed tube 7  through which the rod 5 passes. The rolls, of which there may be two or four, define a pass, Fig. 5, such that helical ribs 14 are formed on the rod. Slots in the bottoms of the roll grooves also form transverse ribs on the rod. The rolls are adjustable towards and away from the pass line. Traction apparatus pulls the rod through the rolling apparatus and also through an initial straightening and pickling assembly.
Patent GB-1395427-A (GB)
Title: Semi-automatic spot-welding apparatus
IPC: B23K9/007
Filed: 1972-09-13
Abstract: 1395427 Welding by fusion E BUCHEL 13 Sept 1972 [15 Sept 1971] 42563/72 Heading B3R A semi-automatic spot-type arc-welding gun, comprises a casing 1, 2 provided with a pistol grip and adapted to carry an axially movable consumable electrode 16, a resiliently loaded hollow welding head 14 mounted on the front of the casing for axial movement relative thereto and into which the tip of a said electrode can protrude in use of the gun, a first longitudinally extending ratchet toothed rack 20 fixed at each end to the casing, a second longitudinally extending ratchet toothed rack 21 parallel with said first rack fixed at one end to the welding head structure and slidably mounted at its other end so as to be movable with the welding head, the ratchet teeth on the first rack being directed in the opposite direction to the teeth on the second rack, means 25 ... 31 for advancing a said electrode along the casing, said means being provided with catches engageable with the teeth on said racks, said means being held relative to the casing by said second rack when said casing in use of the gun is moved forwardly relative to the welding head and moved forwardly relative to the casing by the first rack when the head is moved forwardly relative to the casing, means for connecting a said electrode to a source of electrical current, said means including a trigger 35 provided on the casing. The gun has at its forward end a hollow cylindrical welding head 14 of copper, the rear end of the head being closed by an asbestos disc 15 having a central hole 15a for slidably supporting and guiding a consumable electrode 16 the head being adapted to be engaged with a workpiece during welding so that the arc and harmful rays therefrom are enclosed in chamber 14b. The head 14 is attached to a flanged sleeve member 9 which is slidably retractable on bolts 8 against the pressure of springs 10 when the tool is pressed against a workpiece and as the electrode burns away. The length of electrode burnt away at each spot weld is determined by the position of adjustable nut 12 arranged to abut the heads 8a of bolts 8. The electrode 16 is gripped at its inner end by a holder 31 attached to a pin 30 slidably arranged in a tube 7 and connected via a slot 7a in the tube to a drive member 25. The latter co-operates with the two ratchet-toothed racks 20, 21 to prevent rearward movement of the electrode during welding and ensure that after each spot weld, as the sleeve member 9 and welding head 14 return under the action of springs 10 to their normal forward position, the electrode is drawn forward a corresponding distance. A trigger 35 and relay 36 actuated thereby control the supply of current to the electrode.
Patent GB-1482453-A (GB)
Title: Memory driver circuits
IPC: G11C16/10
Filed: 1974-10-01
Abstract: 1482453 Memory and drive circuit INTERNATIONAL BUSINESS MACHINES CORP 1 Oct 1974 [11 Oct 1973] 42623/74 Heading G4C [Also in Division H3] A driver/accessing circuit for a matrix memory array of FAMOS (Floating gate Avalanche-injection Metal Oxide Semi-conductor) devices is described in which a transistor controls the application of read and write voltages to the FAMOS devices, a current path being connected to the transistor control electrode to prevent the accumulation of a charge sufficient to cause avalanche breakdown in the transistor. Each word line of the memory array 100, in which write operations are performed by inducing avalanche breakdown in a transistor in a memory cell and therefore require the use of significantly higher potentials than reading operations, is connected to a respective word drive circuit, Fig. 2 (not shown), and each bit line is connected to a respective driver/sense circuit, Fig. 1. Each memory cell, 112, Fig. 5, has a floating gate FG and a binary 1 is written by connecting high negative potentials to the gate and controlled electrode of the decode transistor 110 to induce avalanche breakdown in the cell and store a negative charge (more or less permanently) on the gate. The cell is read using a relatively low voltage by rendering transistor 110 conductive so as to discharge or otherwise the bit line depending on the state of cell 112. Data is erased using either an erase electrode or by irradiating the cell with U.V. light. The circuit of Fig. 1 operates in either write or read modes, depending on the state of the switches coupling write or read potentials to the circuit, in response to a three phase clock #1, #2, #3, Figs. 3 and 4 (not shown). During writing each transistor in the driver/sense circuit is, like the memory cell circuits, subjected to potentials such as to cause avalanche breakdown and has its gate connected to earth, e.g. transistor 10 via transistor 18, in order to drain away charge and prevent the breakdown. The transistors 26, 28, 30 form a conventional decode circuit which responds to select a bit line for read/write operations when all the select signals S hold the transistors off.
Patent GB-1520519-A (GB)
Title: Process for producing sulphur from sulphur dioxide
IPC: B01D53/74
Filed: 1975-10-20
Abstract: 1520519 Reducing SO 2  in gas streams EXXON RESEARCH & ENG CO 20 Oct 1975 [14 Nov 1974] 42923/75 Heading C1A. Sulphur is produced from a sulphur dioxide containing gas stream by contacting it with a reducing gas comprising a lower (C 1 -C 4 ) monohydric alcohol under conditions such that at least a portion of the SO 2  is converted to elemental sulphur. The process is preferably carried out thermally at above 1000 F. or catalytically at 300-2000 F.
Patent GB-1399120-A (GB)
Title: Apparatus for use in curing a tyre
IPC: B29D30/54
Filed: 1972-08-22
Abstract: 1399120 Retreading tyres MCNEIL CORP 22 Aug 1972 [10 Sept 1971] 43010/74 Divided out of 1399119 Heading B5A Apparatus for retreading and curing a tyre T includes mould sections 21, 20 movable axially relative to bolster plates 25, 26 on which they are mounted, and axially movable bladder assemblies 70, 130 which engage the tyre heads and sidewalls. The bolster plates are also relatively movable axially of the tyre. The plate 26 is attached in an axially adjustable manner by a threaded sleeve 28 to the upper vertically movable part of a press, and the mould section 20 is vertically movable relative the plate 26 by piston and cylinders 55, the pistonrods of which are attached to a mould mounting plate 51. The upper bladder assembly 70 is supported by a piston-rod 64 driven axially in the sleeve 28 by pressure fluid fed to either side of a piston 63. The axial spacing of the heads 72, 73 of the bladder of the upper bladder assembly is adjusted by varying the threaded engagement of a shank 81 of the lower head supporting plate 80 within the piston-rod 64. The mould section 21 is raised and lowered relative the bolster plate 25 by vertically driven rods 107, Fig. 2, which extend through the bolster plate and engage a mould mounting plate 91. The rods are attached to beams 103 driven by cams 101 attached to the main press drive, the cams being engaged by cam followers 110 urged into contact therewith, at the appropriate time, by a pressure cylinder 112, Fig. 1. The lower bladder assembly is similar to the upper one and is raised and lowered by a piston 123 in a cylinder 122. An electric heating ring 150 located centrally of the tyre supplements steam chambers for effecting tyre curing. In operation, with the mould sections retracted, Fig. 4, a tyre is placed on the lower bladder assembly, and the heater 150 which is raised with the bladder assembly, is energized at the beginning of press closing or thereafter; the upper bladder assembly is then lowered to engage the tyre and fluid is fed to the tyre interior causing the bladder assemblies to retract, Fig. 6, and produce a reduction in the diameter of the tyre tread. The mould assemblies are then urged together to contact the tyre tread after which the press is finally closed, Fig. 1. Pressure fluid is fed to the bladder assemblies via passages 84, 144.
Patent GB-1520004-A (GB)
Title: Velocity correction for video discs
IPC: H04N5/76
Filed: 1975-10-21
Abstract: 1520004 Automatic control systems RCA CORPORATION 21 Oct 1975 [12 Nov 1974 (2)] 43217/75 Heading G3R [Also in Division H3]  In video disc apparatus, to reduce jitter in the video signal e.g. due to eccentricity of the disc, the signal from the disc is phase compared with a reference frequency, so as to control the position of the signal pick-up relative to the disc i.e. the instantaneous speed between them. As shown, a video signal from disc 12 is demodulated, and heterodyned at 18 with the output of voltage controlled oscillator 40. Only the lower sideband thus obtained (the chrominance sub-carrier) is passed by filters 20, 21 and gated by burst key signals (that follow video signal horizontal synchronizing signals) to phase comparator 22. Here it is compared with a reference frequency, the result being used to control the position of the pick-up 10 along the groove on the disc 12 (using a so called "arm-stretcher" device 34), in order to remove jitter in the video signal caused by eccentricity or warp of the disc. The output of comparator 22 is also used to control the voltage controlled oscillator 40, to regulate the chrominance sub-carrier frequency (see Division H3). Filters 30, 38 on the comparator output ensure that the pick-up position and oscillator controls respond to different, low frequency phase errors. The pick-up may capacitively sense a spiral groove on disc 12. In an alternative Fig. 1 (not shown) the oscillator 40 is controlled directly by the comparator output, and filters 30, 38 replaced by a lead/lag circuit.
Patent GB-1444175-A (GB)
Title: Detection of erroneous operation of data processing systems
IPC: G06F11/22
Filed: 1973-09-17
Abstract: 1444175 Detecting errors in data processing systems INTERNATIONAL BUSINESS MACHINES CORP 17 Sept 1973 [29 Sept 1972] 43457/73 Heading G4A A data processing system is checked for errors by repeatedly performing the following operations; checking successive circuit groups in the system for errors in a sequence corresponding to the flow of information through the system, and, on detection of an error in a circuit group, storing the identity of the group only if it is nearer to the start of the sequence than any previously stored identity, and immediately beginning a new checking operation starting with the first circuit group in the sequence. A start signal enables gates 35, 36 to store the address of the first circuit group in the sequence in register 24 and an address one greater than that of the last circuit group in the sequence in register 29, the circuit groups having consecutive address in accordance with their position in the sequence. The contents of register 24 call a test program for the corresponding circuit group via line 25 and are normally incremented via 21 and gate 22 until an error is detected. On detection of an error gates 31 and 32 are enabled and the contents of registers 24 and 29 are compared, 33, and the contents of 29 are replaced by those of 24 if the contents of 24 are the smaller. Gate 22 is blocked and 24 is loaded with the address of the first circuit group in the sequence via gate 28. The sequence then continues, the contents of register 29 being displayed to indicate the most probable source of error.
Patent GB-897891-A (GB)
Title: Improvements in or relating to overload voltage protection systems
IPC: H02H3/20
Filed: 1959-12-22
Abstract: 897,891. Protective arrangements. GENERAL MOTORS CORPORATION. Dec. 22, 1959 [Jan. 13, 1959], No. 43505/59. Class 38 (4). A load is supplied from a source 10 over a normally fully conductive transistor 18 and is protected from transients in the source voltage by means which include a second normally non-conductive transistor 20 and a zener diode 28, the transients breaking down the diode 28 whereupon the transistor 20 becomes conductive, the subsequent volt-drop across the resistor 24 biasing the transistor 18 to cut-off to remove the supply to the load. Temperature compensation is provided in the form of a thermistor 40 and various of the circuit components may provide inherent temperature compensation.
Patent GB-1248766-A (GB)
Title: Light-sensitive diazo compositions
IPC: G03C1/58
Filed: 1968-09-12
Abstract: 1,248,766. N - substituted - α - hydroxy ,- #- naphthamides. SCOTT GRAPHICS Inc. 12 Sept., 1968 [13 Sept., 1967], No. 43525/68. Heading C2C. [Also in Division G2] The Specification discloses α - hydroxy - #- naphthamides having the general formula wherein R<SP>1</SP> is an alkyl group containing from 2 to 6 carbon atoms, a hydroxyalkyl group containing 2-6 carbon atoms, a heterocyclicsubstituted alkyl group containing from 2 to 3 carbon atoms in the alkyl chain and up to 7 atoms in the heterocyclic substituent, or an unsubstituted aralkyl group containing from 7 to 10 carbon atoms; R<SP>2</SP> is a hydrogen atom or a group represented by R<SP>1</SP>; and the group represented by-N R<SP>3</SP> is a saturated, nitrogencontaining heterocyclic ring containing up to 7 atoms in the said ring. The following compounds are prepared in the examples: N- morpholinopropyl - 1 - hydroxy - 2 - naphthoic acid amide; N-butyl- 1 -hydroxy-2-naphthoic acid amide; N-#-hydroxyethyl-1-hydroxy-2- naphthoic acid amide; N-benzyl-1-hydroxy-2- naphthoic acid amide; N-methyl-N-#-hydroxyethyl.1.hydroxy-2-naphthoic acid amide; 1- hydroxy-2-naphthoic acid, morpholide; and 1- hydroxy-2-naphthoic acid-N-methyl piperazide.
Patent GB-1270726-A (GB)
Title: Substituted chromanes
IPC: C07D311/58
Filed: 1969-07-04
Abstract: 1,270,726. Chromans. ELI LILLY & CO. 4 July, 1969 [5 July, 1968], No. 43775/71. Divided out of 1,270,725. Heading C2C. The invention comprises compounds of formula wherein R<SP>1</SP>, R<SP>2</SP> are each H or C 1-4  alkyl, R<SP>3</SP> is C 1-4  alkoxy or benzyloxy, and either X is H and Z is NH 2  or o-NHC 6 H 4 CO 2 H (possibly substituted by C 1-4  alkyl or alkoxy, F, Cl, Br, NO 2  or CF 3 ), or X is Cl or Br, and Z is H. The compounds (A) where X is Cl or Br are prepared by direct halogenation; those (B) where Z is NH 2  are prepared by reacting A with alkali metal amide in liquid NH 3 , while those where Z is possibly substituted o-NHC 6 H 4 CO 2 H are prepared by reacting B with the corresponding o-halobenzoic acid in presence of Cu or a Cu<SP>I</SP> salt. Starting materials.-Details are also given for the preparation of 2,2-dimethyl-7-methoxychroman, its 4-ol and 4-one; and 2,2-dimethyl- 7-methoxy-3-chromene. Therapeutic compositions comprise the above compounds where X is H and Z is NH 2 , and their pharmaceutically acceptable non-toxic salts, which are mild C.N.S. depressants.
Patent GB-903944-A (GB)
Title: Manufacture of pyruvic acid esters
IPC: C07C69/716
Filed: 1960-12-21
Abstract: A catalyst for the oxidation of lactic esters to pyruvic esters (see Group IV(b)) comprises iron oxide and molybdenum oxide supported on sintered alumina.  The catalyst may be prepared by a series of impregnations of the sintered alumina with a solution containing iron and molybdenum salts (e.g. ferric ammonium oxalate tetrahydrate and ammonium molybdate tetrahydrate) and drying first at 125 DEG -130 DEG C. and then at 250 DEG -260 DEG C. after each impregnation.  After use, the catalyst may be regenerated by heating at 350 DEG -400 DEG C. in the presence of oxygen generally as air. U.S.A. Specification 2,849,493 is referred to.ALSO:Pyruvic esters are obtained by the vapourphase oxidation of a lactic ester in the presence of an oxygen-containing gas and an iron oxide-molybdenum oxide catalyst supported on sintered alumina (see Group III) at 180-300 DEG C.  The oxygen-containing gas may be air and which may be diluted with an equal volume of nitrogen or other inert gas.  Specified esters which may be prepared are alkyl, aryl and aralkyl esters.
Patent GB-1482839-A (GB)
Title: Vulcanisable rubber compositions and vulcanised rubber prepared therefrom
IPC: C08K5/16
Filed: 1975-10-28
Abstract: 1482839 Vulcanizing bromobutyl rubber SANYO TRADING CO Ltd 28 Oct 1975 [29 Oct 1974 2 Oct 1975] 44290/75 Headings C3E and C3P Bromobutyl rubber is vulcanized using a specified amino and or salt thereof as vulcanizing agent, alone or together with sulphur or a sulphur donor. Examples are given in which the agent used is (a) arginine, lysine, ornithine, cystine, glutamine or a mixture of arginine with lysine or ornithine; (b) a mixture of arginine, lysine and dicumyl peroxide; (c) a mixture of sulphur with histidine, hydroxyproline, thyptophan, theonine, leucine, isoleucine, serine, valine, methionine, tyrosine, glycine, aldrine, glutamic acid or sodium glutamate; or (d) a mixture of tryptophan, proline or histidine and morpholine disulphide or dipentamethylene tetrasulphide.
Patent GB-1026226-A (GB)
Title: Magnetic liquid injection valve and method of operating same
Inventor: GUILLERMIC ANDRE JOACHIM FRANC
IPC: B05B12/04
Filed: 1964-10-30
Abstract: 1,026,226. Delivering measured quantities of liquid. BRITISH PETROLEUM CO. Ltd. Oct. 30, 1964 [Nov. 12, 1963], No. 44329/64. Heading B8N. A valve for dispensing a measured quantity of liquid comprises a body 6 having inlet and outlet passages 1, 2 communicating with a measuring recess 2a and a magnetically-actuated valve member 7, 8 movable intherecess and adapted to open or close an outlet port 4a in a member 4 adjustably mounted in the recess. The member 4 is screwed into the body 6 in order to vary the distance between the lowest surface of the inlet and outlet passages 1, 2 and a curved surface 3 of the member 4; the degree of adjustment may be indicated by a scale 10a. In operation with the valve 7 in the closed position shown liquid is fed along passage 1 until it overflows through the outlet passage 2. Upon energization of a solenoid 9, the valve 7 is lifted to open the outlet port 4a and thereby dispense the liquid. A number of dispensing valves may be included in a circuit and the solenoids actuated in sequence by cam-operated switch means. Apart from the magnetic portion 8 of the valve 7, the whole valve can be made from polytetrafluoroethylene.
Patent GB-909585-A (GB)
Title: Moulds for use in the production of metal castings and ingots
Inventor: CHERRY GEORGE JOSEPH NALL
IPC: B22C23/02
Filed: 1959-12-31
Abstract: 909,585. Mould and core materials. FOUNDRY SERVICES INTERNATIONAL Ltd. Dec. 21, 1960 [Dec. 31, 1959], No. 44458/59. Class 83 (1). A mould with an inner lining of a porous heat-insulating, combustible or exothermic composition is faced by filling the mould with a slurry of a finely-divided non-carbonaceous refractory material, allowing the filled mould to stand and then removing the residual slurry from the mould. The slurry may include zircon flour, dextrin or linseed oil as a binder and bentonite sulphite lye or sodium alginate as a suspending agent. The slurry may be selfsetting or it may be set, as by the application of CO 2  gas to a slurry containing sodium silicate. Specification 875,569 is referred to.
Patent GB-1285063-A (GB)
Title: Tanker vehicle
Inventor: DESEYN ALBERT
IPC: B60P3/22
Filed: 1969-09-10
Abstract: 1285063 Tank vehicles DIDAK NV 10 Sept 1969 44678/69 Heading B7B [Also in Division F2] A tank 10 is supported on a vehicle chassis 9 by top hat section members 1 of synthetic plastics material which accommodates relative movement between the parts. A plurality of members 1 may be supported one inside the other to provide a suspension after the fashion of a multiple-leaf spring.
Patent GB-927649-A (GB)
Title: Improvements in or relating to feed fingers of the kind which are used for advancing stock in machine tools
Inventor: EVE LEONARD FRANK
IPC: B23B13/12
Filed: 1960-12-30
Abstract: 927,649. Machine-tool details. CRAWFORD COLLETS Ltd. Dec. 22, 1961 [Dec. 30, 1960], No. 44731/60. Class 83 (3). A bar-feed finger comprises a barrel 10, resilient jaws, formed by two slits 10A and an adaptor 11 screwed on to the barrel, which engages a tapered portion 10c, to alter the tension of the jaws. Holes 11c are provided in the adaptor so that by engaging a tool in these holes, and another tool in a slot 10A, relative rotation of the members 10, 11 is possible, to adjust the tension. The amount of adjustment is indicated by numbers stamped on portion 10d visible through a hole 11e in the adaptor. Semicircular pads 12 may be supplied, which are keyed to the jaws, and several sets of pads of different sizes and materials may be provided.