baber/WOPTO huggingface dataset:
Patent GB-627897-A (GB)
Title: Stabilization of tetrahydrofuran
Filed: 1947-04-21
Abstract: Tetrahydrofuran is stabilized against peroxide formation by incorporating therein para-cresol in an amount which is preferably 0.05-1.0 per cent by weight of the tetrahydrofuran.  In an example, the peroxide formation occurring in a sample of anhydrous freshly distilled tetrahydrofuran containing 0.1 per cent paracresol and stored in a glass bottle in diffused light is compared with that resulting when the inhibitor is absent.
Patent GB-865184-A (GB)
Title: Improvements in or relating to printers' make-ready
IPC: B41M9/04
Filed: 1957-04-01
Abstract: In Example (1) a composition is described which comprises 1,200 parts by weight of a vinyl chloride-vinyl acetate copolymer, 480 parts of plasticizer, 624 parts of amyl acetate, 680 parts of volatile petroleum naphtha and 30 parts of puffing agent.  The vinyl chloride-vinyl acetate copolymer contained 90 parts of vinyl chloride to 10 parts of vinyl acetate.  The plasticizer was a polymeric polyester type, and the puffing agent was p, p1-oxy bis (benzene sulphonyl hydrazide).  The ingredients, except the puffing agent, were added to a jar half filled with porcelain balls of about 1/2 inch diameter and the jar was rolled for about 16 hours after which the puffing agent was added and the jar rolled for a further 2 1/2 hours.  Example (3) describes a composition comprising a vinyl chloride-vinyl acetate copolymer, a condensation product of epichlorhydrin and bisphenol A, adipyl dihydrazide (curing agent for the epoxy resin) amyl acetate, petroleum naphtha and a puffing agent. Example (4) describes a composition comprising a vinyl chloride-vinyl acetate copolymer, an epoxy resin as in (3), 2, 4-toluene disulphonamide (epoxy curing agent) N-(3-diethylaminopropyl) phthalimide salicylate (activator for epoxy curing agent), amyl acetate, naphtha and puffing agent (p-diphenyl diazanium fluoborate, which functions additionally as a curing agent for the epoxy resin). The compositions may also contain carbon black, aluminium powder, silica and bentonite.  The compositions are formed into sheets and p exposed to radiant energy to cause expansion and, when an epoxy resin is present, curing.ALSO:In Example (1) a composition comprises 1200 parts by weight of a vinyl chloride-vinyl acetate copolymer, 480 parts of plasticiser, 624 parts of amyl acetate, 680 parts of volatile petroleum naphtha and 30 parts of puffing agent.  The vinyl chloride-vinyl acetate copolymer contained 90 parts of vinyl chloride to 10 parts of vinyl acetate.  The plasticiser was a polymeric polyester type, and the puffing agent was p, p1-oxy bis benzene sulphonyl hydrozide.  The ingredients, except the puffing agent were added to a jar half filled with porcelain balls and the jar was rolled for about 16 hours after which the puffing agent was added and the jar rolled for a further 2 1/2 hours.  The compositions (see Group IV(a)) are described.  The compositions may also contain carbon black, aluminium powder, silica and bentonite.  The compositions are formed into sheets and exposed to radiant energy to cause expansion.
Patent GB-409892-A (GB)
Title: Improvements in or relating to machines for cutting bricks and performing like operations
IPC: B28B11/14
Filed: 1933-04-08
Abstract: 409,892. Cutting clay or other plastic material. BENNETT, C. L., Mostyn, Calstock Road, Nottingham. April 8, 1933, No. 10602. [Class 87 (ii).] In machines for cutting plastic material by one or more wires 11, particularly for cutting clay for bricks, and having a scraper 19 provided for the wire or for each wire or for selected wires, the scraper is rotatably mounted to move in a curved path during cleaning. The material may be cut by forcing the wires through it or by forcing a slab of the material through fixed wires. In this case the wires 11 are secured to hooks 13, 17 adjustable in slots in cross-bars 14, 18 in a frame mounted on a table 10. The wires may be inclined upwards towards the material and the scraper is adapted to clean those parts of the wires at and slightly above the table level. The scrapers 19 may be bifurcated so as to engage the wire on two sides and may be mounted on a rotatable rod 20 adapted to be rocked by hand or automatically from a pusher 12 which feeds the material through the wires. The rod 20 may be circumferentially grooved to receive the wires and it may also have two diametrically opposed axial grooves for receiving bars carrying the scrapers. The spacing of the wires is adjustable and the carrier bars may be replaceable by other bars having differently spaced scrapers. The circumferential grooves may be at standard intervals corresponding to the different spacings. The rod 20 may be connected to the pusher 12 through an arm 22, lost-motion slot 24 and an arm 25 pivoted to a casing 28 of a pawl-andratchet control device mounted on the rod 20. The pawl is a plunger 32, Fig. 4, having a bevelled end aadpted to engage a ratchet 26 keyed to the rod. The plunger may be held in two opposed positions and in a third at right-angles to these by a pin 38 engaging slots 36, 37 in the flap top of the casing. In the first two positions, the rod 20 is rocked during either forward movement only or backward movement only of the pusher 12, the bevel slipping over the ratchet during one direction, and in the third position the rod is rocked whatever the direction of movement.
Patent GB-1137917-A (GB)
Title: Arrangement for statistical analysis
Inventor: BUXTON SIMEON ALAN EARP
IPC: G06J1/00
Filed: 1965-03-12
Abstract: 1,137,917. Statistical analysis. ENGLISH ELECTRIC CO. Ltd. 13 June, 1966 [12 March, 1965], No. 10620/66. Heading G4A. A device for producing signals representing the mean and standard deviation of a set of input signals comprises two units 11, 13 each of which is partly responsive to the output of the other. In the mean value deriving unit 11, the difference between the instant means input and output signals of the unit is formed and converted to digital form. The differences are then added and the sum compared with limit values supplied from a store, the particular limit values depending on the nature of the random variation of the input signals. If the sum does not fall within the prescribed limits, the analogue output of the unit is adjusted, by an amount depending on a signal received on line 12 connected to the output of the standard deviation unit 12. The output of unit 11 is fed to a read-out and to the unit 13 where it is compared with the set of input signals and the sequences of the differences formed and converted to digital form. The squares are added and the sum again compared with limit values supplied from a store, whereupon the analogue output of the unit is adjusted if the value of the sum lies outside the limit values. Counters controlling the supply of different limit values to the two units, are reset when the output of the corresponding unit is adjusted.
Patent GB-610455-A (GB)
Title: Improvements in or relating to the manufacture of tines for agricultural implements
IPC: B21K19/00
Filed: 1946-04-05
Abstract: 610,455. Making agricultural implements. ARON, H. April 5, 1946, No. 10631. [Classes 83 (ii) and 83 (iv)] Breaking.-In a method of making tines for agricultural implements a length of square bar is heated at the centre between vice electrodes to raise the bar to forging temperature, and the ends of the bar are then drawn apart so forming two pointed tines. Preferably, the current is switched off before the workpiece is drawn apart. The machine has parallel guide bars 11 and 12 supported between end castings 13 and 21 on a bed-plate 14 and carrying a cross-bearer 24 which is capable of movement to any desired position on the guide bars 11 and 12 by the operation of a hydraulic ram 42. The end casting 13 and the cross-bearer 24 each carry one pair of vice jaws 27, 29 and 28, 30 respectively, shaped to receive the workpiece, the upper jaw of each set 29 and 30 being capable of vertical movement by means of hydraulic rams 31 and 32 respectively. The end casting 13, and hence the pair of vice jaws 27 and 29 it carries, is insulated from the rest of the machine. Flexible electric cables connect the vice jaws to the secondary terminals of a step-down transformer accommodated together with a hydraulic pump, control valves, &c. in the rear of the machine. An alternative form of construction has the vice jaws of each set fixed one behind the other and adjusted horizontally. Specifications 462,236, 465,103, 514,728 and 575,388 are referred to.
Patent GB-845481-A (GB)
Title: Improvements relating to processes for applying protective coatings to metal surfaces
Inventor: WHITAKER ALFRED
IPC: C25D11/00
Filed: 1958-04-02
Abstract: 845,481. Coating surfaces. SIEMENS EDISON SWAN Ltd. March 19, 1959 [April  2, 1958], No. 10642 /58. Drawings to Specification. Class 93. [Also in Group XXXVI] Parts of a metal surface are provided with a coating of a material which resists the deposition of solder thereon by electrically depositing on the surface a layer of metal, converting said metal to its sulphide then converting said sulphide back to the metal only on those parts of the surface to which solder is to be allowed to adhere, leaving the sulphide layer on the parts to which solder is to be prevented from adhering. Where the surface is copper, a suitable deposited metal is silver, which is converted to sulphide by passing through a bath containing a hot solution of alkaline sulphides. The re-conversion to silver may be effected electrolytically.
Patent GB-1141427-A (GB)
Title: A method of increasing the dye affinity of polyamide textile material
IPC: D06P1/651
Filed: 1967-03-07
Abstract: 1,141,427. Polyamide fibres. MARTIN PROCESSING CO. Inc. 7 March, 1967 [7 March, 1966], No. 10709/67. Heading B5B. [Also in Division D1] The dyeing properties of polyamide fibres are enhanced by impregnation of the fibres for less than 3 seconds with a solution or suspension of benzyl alcohol in a solvent which is volatile at a temperature below the boiling point of benzyl alcohol, the pH of the solution or suspension being between 3 and 7, the solution or suspension in excess of that absorbed by the fibres then being removed in a conventional manner, and the fibres heated to a temperature between the boiling point of the solvent and that of benzyl alcohol. The fibres containing benzyl alcohol may then be dyed, or may be stored for future use. Two colour effects may be obtained by impregnating the material in pre-selected areas with solutions containing differing amounts of benzyl alcohol, or the solutions or suspensions may contain one or more dye resist agents thus enabling multicolour effects to be produced. The process may be applied to polyamide material in fabric or film form.
Patent GB-568613-A (GB)
Title: Improvements in or relating to cam gearing
IPC: B62D3/02
Filed: 1943-07-05
Abstract: 568,613. Cam gearing. JOHNSTON, R. H. July 5, 1943, No. 10876. [Class 80 (iii)] Relates to cam gearing of the kind comprising a worm cam fixed on a shaft, e.g. the steering column of a road vehicle, and engaged by a follower in the form of a single pin, carried in a rocker arm, and having a frusto-conical end engaging the cam. According to the invention, the contacting surfaces of the cam 1 and the end 3 of the pin are so inclined that the line of action 8 of the force on the pin, for any setting of the gearing, will pass between the axis of the pin and that point on the bearing surface of the front bearing that is most remote from the said axis on the opposite side thereof to the said contacting surfaces. Preferably, the line of action will pass through the centre of the bearing surface of the front bearing, Figs. 2, 3, or, if such front bearing be of the anti-friction type, through the centre of a ball 9, Fig. 1, or equivalent roller. The object is to avoid a turning moment about the bearing surface of the front bearing which tends to tilt the pin. The thread of the worm can be formed in the manner described in Specification 223,963, [Class 80 (iii)]. Specifications 7909/14 and 253,257, [both in Class 80 (iii)], also are referred to.
Patent GB-1261452-A (GB)
Title: Method and circuit arrangement for the protected transmission of binary data
IPC: H04L1/00
Filed: 1969-02-28
Abstract: 1,261,452. Digital transmission systems. ELKIS ELEKTROTECHNIKA KTSZ. 28 Feb., 1969 [28 Feb., 1968], No. 10933/69. Heading H4P. In a digital data transmission system each group of bits representing a character has a Start bit added to it, the resulting signal being passed to an encoder which delivers a signal in error-correcting form for transmission. The embodiment described employs a 5-bit group to which is added a Start bit. The 6-bit signal is encoded, resulting in a 9-bit signal which includes three check bits, one after each pair of bits. If the input of 5-bit groups fails, special 6- bit signals are generated, characterized by having the "Start" bit in the second bit position. The receiver is synchronized by use of the Start bits. A decoder corrects errors, if possible, or delivers an error-indicating signal if the error is not corrected. The decoder output is the 6-bit signal similar to that at the transmitter. After the addition of a Stop bit the character group passes to the receiver output. The start of a message is indicated by a sequence of eight of the special characters. The start is indicated if at least seven of the eight are detected and are error free.
Patent GB-1602652-A (GB)
Title: Method of providing non-slippery areas in container surfaces
IPC: B29C48/10
Filed: 1978-03-20
Abstract: A plastic film is produced in a tubular shape by extrusion. In this process, the outer surface, for example, of the tube is roughened and the tube is cut up in the longitudinal direction in order to divide it into strips. An adhesive is applied to the smooth surface of the strips and the self-adhesive strip thus obtained is wound onto a roll. From these strips, pieces are cut off and bonded to some places on the packages, which places come to rest on one another during stacking. The resistance of the packages to slipping is thus considerably increased. <IMAGE>
Patent GB-812509-A (GB)
Title: Improvements in or relating to the packing of machine knitting needles
IPC: B65D27/00
Filed: 1957-04-04
Abstract: 812,509. Packages; envelopes. TORRING- TON CO. April 4, 1957. [April 5, 1956], No. 10973/57. Classes 94(1) and 94(2). Knitting-machine needles are packaged sideby-side, as shown in Figs. 1 and 2, in an envelope 4 formed by folding a blank, Fig. 3, compressing side flaps 5 and 6, formed with recesses 8, 9 and tabs 11, a bottom flap 7 and a closure flap 14 formed with a tongue 15 adapted to enter a slit 13 in the flap 6. The flaps 5, 6 and 7 are folded over and secured by adhesive and the needles are inserted through an opening 10 formed by the recesses 8, 9, the tabs 11 being deflected upwardly by the butts 12 of the needles and their resilience being sufficient to hold the butt together and prevent undesirable movements of the needles in the envelope and to move the outer needles inwardly as needles are removed from the centre of the row.
Patent GB-966407-A (GB)
Title: Fuel cell pack construction
Inventor: VICKERS HERBERT HENRY
IPC: H01M8/24
Filed: 1962-03-22
Abstract: 966,407. Fuel cells. ESSO RESEARCH & ENGINEERING CO. March 22, 1962, No. 11007/62. Heading H1B. A battery comprises an assembly of bi-polar fuel cell electrodes having an inpermeable partition 21 between the adjacent electrodes 11, 13 and serving to separate the electrolyte of adjacent cells, whilst at the same time incorporating or forming a resilient electrically conductive member serving to absorb any thermal movement in the battery and to couple the cells in series. Various resilient devices are disclosed, including dimples pressed out of the partition springs and metal contacts passing through the partition.
Patent GB-660486-A (GB)
Title: Bagging platform for combine harvesters
IPC: A01D41/12
Filed: 1949-04-26
Abstract: 660.486. Combine harvester. CLAAS, T., CLAAS, A., and CLAAS, F., (trading as MASCHINENFABRIK GEB. CLAAS), and BRENNER. W. G. April 26, 1949, No. 11025/49. Class 58 The roof b of a combine harvester is devised as a bagging platform for a multiplicity of bags and is arranged at such a level that the bags may be discharged down a shoot e attached to the floor of the platform into a cart f. Apertures h in the roof return spilled grain to the shaker g. The grain elevator d with a distributer d<SP>1</SP> debouches so high above the platform that the sacks can be filled without trouble.
Patent GB-708344-A (GB)
Title: Improvements in or relating to operating means for folding and sliding doors
Inventor: TEMPLE JOHN EDWIN
IPC: E05F15/10
Filed: 1951-05-10
Abstract: 708,344. Belt gearing. TEMPLEX HOLDINGS. Ltd. March 18, 1952 [May 10, 1951], No. 11075/51. Class 80 (1) [Also in Group XXV] A sliding-folding door comprising vertical pillars O guided at their lower and upper ends by rollers W, W<SP>1</SP> respectively and connected together by pairs of folding panels P, p<SP>1</SP>, is operated by a pair of cables C, C<SP>1</SP> fixed at their ends to the door frame and wound on and off independent coaxially arranged pulleys A carried within the hollow end pillar M and driven through a differential mechanism to ensure equal linear speeds of the cables irrespective of the relative angular speeds of the pulleys. The pulleys are carried on a shaft 50 driven through reduction gearing and a centrifugal clutch. Fixed to the shaft are a sleeve 51, an annular plate 53 and a pair of annular blocks 74 embracing the plate. Pivotally mounted on the periphery of the latter are four equally spaced bevel pinions 56 which engage a pair of bevel wheels 63 fixed to the inner faces of respective pulley elements 65, 65<SP>1</SP> which constitute the driving pulleys A. Each pulley element is journalled on one of the blocks 74 and the contacting surfaces of the elements are formed with lubricant grooves 77. A limit switch is provided to stop the motor when the pillar M abuts the door frame at the end of the closing movement. The starting button of the motor is, however, arranged to short circuit the limit switch so that the motor may be operated further if the pillar is not vertical, when the differential drive permits straightening of the pillar to the extent of taking up any slack in the cables, the the centrifugal clutch then functioning as a safety device. Specifications 691,058. 709,435 and 709,459, [all in Group XXV], are referred to.
Patent GB-813581-A (GB)
Title: Improvements in or relating to electron image multiplier apparatus
IPC: H01J31/50
Filed: 1956-04-12
Abstract: 813,581. Making electric components; soldering. McGEE, J. D. April 9, 1957 [April 12, 1956], No. 11117/56. Classes 83 (2) and 83 (4). [Also in Groups XXIII and XL (a)] Dynodes for electron image multipliers are made by securing together thin-walled rectangular tubes to form a stack and cutting oblique slices from the stack at such an angle that each slice is constituted by square-sectioned cells. Nickel tubes 14, Fig. 2, of 0.002 inch to 0.003 inch wall thickness and outer dimensions 1 mm. x #2 mm. are held together in a clamp 17, Fig. 3, and their upper ends sealed with a cement of potassium silicate and alumina. The clamp is placed in a reducing atmosphere at 900-1000‹ C. in a furnace with solder, e.g. silver-copper eutectic, on top of the tubes. The solder when melted runs between the tubes to effect soldering. The stack is then sawn into slices using an abrasive cutting wheel of thickness 0.01 inch to 0.02 inch in planes at 45 degrees to the wide faces of the tubes. Prior to cutting the tubes may be filled with a substance which prevents distortion during cutting and is subsequently dissolved out. Each slice is clamped to a plate 25, Fig. 4, having notches 26 to locate wires 27, e.g. copper wires of 0.001 inch diameter which are wound round the slice and the plate to form a mesh of wires intersecting the mid points of the sides of the cells. Alternatively the plates may be dispensed with and the wires wound to form a mesh of wires crossing the cells diagonally and looped through cells or passing across rows of cells and looped through the end cells as shown in Fig. 5. The dynode is wax coated except where the wires cross the edges of the cells and then subjected to a metal plating process to secure the wires in position. The wires are severed at the edge of the dynode and the plate 25 removed. The dynodes are stacked with alternate dynodes reversed to form zigzag passages and may be secured together by filling the corner cells of the stack with the abovementioned cement. Or if desired the edges of the cells may be covered with the cement which then serves both to insulate and to join the dynodes. The cement may be slightly conductive. The Provisional Specification states that the tubes may be welded or cemented together. Specification 790,416, [Group XL (a)], is referred to.
Patent GB-1214998-A (GB)
Title: Improvements in and relating to nuclear reactor fuel element debris receptacles
Inventor: APPLBY GEORGE GRAHAM
IPC: G21C1/06
Filed: 1967-03-09
Abstract: 1,214,998. Reactors. ATOMIC POWER CONSTRUCTIONS Ltd. 28 Feb., 1968 [9 March, 1967], No. 11172/67. Heading G6C. A debris collector basket situated at the foot of a fuel element channel as in Specification 1,113,145 and having perforated sides to permit the flow of coolant therethrough, is provided with inclined surfaces at the perforations so that the coolant exerts a downward force on the basket. In one construction the basket sides are formed of expanded sheet metal mesh with diamond-shaped openings, the sides of these openings forming the inclined surfaces.
Patent GB-749989-A (GB)
Title: Improvements in or relating to navigation apparatus
IPC: G01C21/16
Filed: 1949-04-20
Abstract: 749,989. Photo-electric control systems. SPERRY CORPORATION. April 20, 1949 [May 26, 1948], No. 11176/51. Divided out of 749,987. Class 40 (3). [Also in Group XXXV] The optical axis of a telescope is automatically maintained in alignment with a selected star. Deviations from alignment cause changes in the output of a photo-electric cell which effect re-alignment of the telescope. In one embodiment, Fig. 4, the light beams from the star normally lies on the optical axis 123 and energizes the photo-electric cell 125 and the rotating mark 124 effects the minimum of modulation. Displacement of the light beam from axis 123, i.e. upon misalignment of the telescope, causes periodic interruption of the beam by 124, and the length of each interruption and therefore the photo-cell output is a function of the misalignment. In a second embodiment, not shown, the mark 124 reflects the intercepted light on to a second photo-electric cell, the output of which is employed in conjunction with that of the first cell. In a third embodiment, Fig. 5, the Dove prism, 131, is contained in the shaft of unit 132, which, together with generator 132<SP>11</SP> is rotated by the motor 132<SP>1</SP>. If the star is displaced from the optical axis 123, the image describes a circle and this falls on each of the sides 136, 137 of the prism 133 from which it is reflected to the photo-electric cells 134, 135. Specification 749,988, [Group XXXV], is referred to.