baber/WOPTO huggingface dataset:
Patent GB-369140-A (GB)
Title: Improvements in or relating to insecticides
IPC: A01N31/02
Filed: 1931-08-26
Abstract: Materials for destroying insects, worms, and other parasites comprise an extract of pyrethrum and a glycol or a derivative thereof.  The pyrethrum flowers &c. may be extracted with glycol, or by means of a mineral oil, petroleum or other heavy oil from which the active substance is extracted by intimately mixing the solution with glycol. The glycol containing the extract may be used to extract a further quantity of solution of pyrethrum in mineral oil and when a sufficient concentration is obtained the glycol extract is purified by the addition of water which causes the precipitation of the waxes, pigments, petroleum, &c. dissolved in the glycol.  An emulsion of about 3 per cent of the glycol extract in water is suitable for atomizing.  In addition to ethylene and diethylene glycol various ethers and esters of these glycols and also 1 : 4-dioxane are mentioned as suitable solvents.
Patent GB-532205-A (GB)
Title: Improvements in vehicle lamps
IPC: F21V14/02
Filed: 1939-08-21
Abstract: 532,205. Vehicle lamps. STURMEY-ARCHER GEARS, Ltd., and BROWN, W. Aug. 21, 1939, No. 24092. [Class 75 (iv)] Rotation of the external screw 22 adjusts the bulb 17 axially. The screw takes into a U-shaped piece 25 with sides recessed and shaped as shown at the ends to snap into recesses 19 in a flange 18 on the bulb holder 16. A plate 31 has a reduced extension 36 which is positioned between the sides of the member 25 to prevent it from turning. The front glass and reflector can be removed as a unit.
Patent GB-1056833-A (GB)
Title: Urea derivatives
Inventor: GREEN ALBERT LAWRENCE
IPC: C07C273/18
Filed: 1963-06-17
Abstract: The invention comprises compounds of formula <FORM:1056833/C2/1> wherein R1 and R2 are halogen atoms or alkyl groups having up to 4 carbon atoms, and n is 2 or 3, and their preparation by reaction of the corresponding aralkylamine with a metal cyanate in the presence of water.  2 - (21, 61 - Difluorophenyl) - ethylamine and its hydrochloride are prepared by reaction of 2,6-difluorobenzaldehyde with nitromethane to give 2-(21,61-difluorophenyl)-nitrostyrene, reducing this with lithium aluminium hydride, and treating with hydrochloric acid.  The compounds of the invention have tranquillizing activity and may be used in pharmaceutical compositions in combination with a carrier, for example in forms suitable for oral administration.
Patent GB-1269958-A (GB)
Title: Improvements in and relating to a unipolar control pulse transformer
Inventor: MULLER EDMUND
IPC: H02M7/515
Filed: 1969-05-12
Abstract: 1,269,958. Triggering thyristors. BROWN, BOVERI & CO. Ltd. 12 May, 1969 [15 May, 1968], No. 24131/69. Heading H2F. [Also in Division H1] The transformers 14, 15 which supply unidirectional control pulses for the control of main thyristors 1, 2 of the inverter circuit shown in Fig. 1 have at least one winding formed of two coaxial conductors the outer of which (W 3 , Fig. 3, not shown) has its beginning or end connected to the end or beginning of the conductor which it encloses to suppress capacitative currents tending ignite one thyristor when the other is fired. Commutating means comprise capacitor 10, commutating inductors 6, 7, 11 and thyristors 12, 13. Capacitors 8, 9 serve with commutating inductors 6, 7 for smoothing the D.C. voltage and as an energy store for current reversal. A capacitor and a non-inductive resistor may be connection in series across the transformer primary or secondary to prevent oscillations due to the inductances and capacitances of the transformer.
Patent GB-977206-A (GB)
Title: Improvements in or relating to livestock feeding devices
IPC: A01K5/02
Filed: 1962-06-22
Abstract: 977,206. Animal feeding appliances. L. G. ELT, and J. H. ELT. May 20, 1963 [June 22, 1962], No. 24167/62. Heading A1M. A livestock feeding device comprises a container 1 receiving foodstuff from an overhead food delivery trough 27 and having a pivoted bottom closing member 4 biased to the closed position by means of a weight 6 and held there by a catch 9 provided with a tail 13 for co-operation with the armature 14 of a solenoid 15 connected to a timing device whereby the member 4 may be released to permit discharge of foodstuff from the container at predetermined times. Foodstuff is fed to container 1 through an opening 19 in trough 27 and a conduit comprising telescopic tubes 17, 18, the tube 17 having graduation markings 21 so that by aligning the top edge 22 of the tube 18 with a selected marking 21 the amount of foodstuff delivered to the container 1 may be varied. The conduit is carried by a plate 24 having hooks 25 for attachment to the trough, the hooks abutting stops 28 to open the opening 19 and abutting stops 29 to permit closure of opening 19 by plate 24. Foodstuff is delivered to trough 27 from a main food container and is moved along the trough by a travelling conveyer 36.
Patent GB-918326-A (GB)
Title: A new or improved navigational instrument
Inventor: MEINIG JOHANNES
IPC: G01C21/02
Filed: 1961-07-05
Abstract: 918,326. Latitude and longitude instruments. FORSCHUNGSZENTRUM DER LUFT. FAHRTINDUSTRIE. July 5, 1961, No. 24199/61. Class 97 (2). A celestial navigation device obtains latitude and longitude position by sighting on two stars in directions a, b, whose angular separation is known. Initially a plate 18, carrying a scale 19, is rotated about axis l with respect to tubes 2, 3 until the pointer 17 on tube 2 indicates the right ascension of star a on scale 19. Greenwich sidereal time is set by rotation of ring 20 with respect to scale 19. Clockwork may be provided in plate 18 which rotates ring 20 continuously with respect to scale 19, ring 20 being capable of being stopped and adapted to reset itself automatically when released. The instrument is rotated on its table 1 about axis l and a yoke 11 is tilted about pivots e until star a is sighted, a pair of clutches 12, 13, being engaged so that yoke 11 carries tube 4 and reflecting prism 6. A mirror 8 is tilted about axis d in relation to a mirror 7 until preset to the known angular separation of stars a, b, and by rotating objective 5 including mirrors 7, 8, and declination quadrant 10 in relation to yoke 11 about axis a, star b is sighted. If table 1 has been kept horizontal by a gyro-stabilizer so that axis l is vertical, the observation is concluded. If however a gyrostabilizer is not provided a vertical mark is reflected into the telescope and the observations corrected until the images of both stars and the vertical mark coincide in the reticle 22. Objective 5 is fixed with respect to frame 14 and, if clockwork is provided, the longitude ring 20 is arrested in respect of the right ascension scale 19. The disengagement of clutches 12, 13, frees tubes 2, 3, 4, prism 6 and frame 15 for rotation about axis l with respect to objective 5, quadrant 10, yoke 11, and frame 14, so that by simultaneously rotating tube 4 and prism 6 about axis c the optical system comprising parts 2, 3, 4, 6 may be used as a reading microscope and moved along the median line of declination quadrant 10, which forms an extension of a hair line 9, until the point, 90 degrees-declination of star a, is seen. Tube 4 is now pointing to the celestial pole in relation to the vertical l and the declination quadrant 10. The circle 16 gives a direct reading of the latitude. A clutch member 21 is raised from the bottom position, coupling tube 3 and eye-piece 2, to an upper position, coupling tube 3 to plate 18, and eye-piece 2 rotated together with its pointer 17 until reticle line 22 appears to be in coincidence with the median line of scale 10. The longitude is then read directly on ring 20 by pointer 17.
Patent GB-1472452-A (GB)
Title: Electrophotographic materials
IPC: G03G5/14
Filed: 1974-05-31
Abstract: 1472452 Barrier layers for electro-photographic materials EASTMAN KODAK CO 31 May 1974 [31 May 1973] 24271/74 Heading G2C An electro-photographic material comprises a conductive support, a polymeric barrier layer having a resistivity greater than 10<SP>12</SP> ohm/square and comprising at least 2 distinct polymeric phases, one being a hydrophobic polymer and the other being a water- or alkali-soluble polymer with a lower resistivity than the hydrophobic polymer and a photo-conductive layer. Specified hydrophobic polymers are polyesters and polycarbonates but vinylidene chloride copolymers with acrylonitrile or acrylates are preferred; this polymer preferably comprises 40-90 weight per cent of the barrier layer. Specified water- or alkali-soluble polymers are gelatine and polyvinyl alcohol but copolymers of alkyl vinyl ethers or cyclic vinylene ethers with maleic anhydride are preferred. The two polymers in a solvent or solvent mixture are applied to a conductive support or a support having a conductive layer, e.g. as in Specification 1257102, and on drying give a hazy, multi-phase layer. A photoconductive layer, e.g. an organic photo-conductor, thiapyrylium dye salt and polycarbonate as in Specification 1153506, is applied over the barrier layer. Other organic or inorganic photo-conductors may be used and an overcoat layer may be applied to the photo-conductive layer.
Patent GB-397675-A (GB)
Title: Improvements in or relating to the automatic regulation of mixtures of gases
IPC: B23K5/22
Filed: 1932-09-01
Abstract: 397,675. Mixing gases in flow. CHOUBRY, F. P., 23, Burgmauer, Cologne, Germany. Sept. 1, 1932, No. 24408. [Class 86.] Means for mixing gases in flow in proportionate quantities, m o r e particularly gas and air, comprises coupled meters of the dry meter kind to which the gases are supplied at approximately the same pressure and which are driven without external motive force. In one form, the meters comprise chambers b, b<1>, Fig. 3, fitted with flexible diaphragms d, d<1> connected by levers g, g<1> to spindles f, which operate slide valves j, j<1>, Fig. 1, and are interconnected by links k, k<1> and cranks l. The gases are supplied by pipes n, n<1> and the mixture escapes by a pipe o. In another form, two compartments are provided for each gas, and the gas is supplied above the slide valves, the measured quantities being exhausted into a chamber furnished with baffles. Reduction gearing may be provided in the connections between the valve gears.
Patent GB-1204943-A (GB)
Title: Improvements in or relating to tandem free-piston machines
Inventor: BENAROYA HENRY
IPC: F02B75/04
Filed: 1968-05-22
Abstract: 1,204,943. Free piston machines. H. BENAROYA. May 22, 1968 [May 24, 1967], No.24502/68. Headings F1B and F1Q. A free piston machine which may be a free piston compressor or gas generator comprises two aligned drive cylinders 1 1 , 1 2 , in each of which work two opposed drive pistons 2 1 , 3 1 , 2 2 , 3 2 , the inner drive pistons 2 1 , 2 2 , working respectively in one and the other of these two drive cylinders being mechanically inter-connected thus forming a first group, the two outer drive pistons 3 1 , 3 2 , which also work respectively in one and the other of the two drive cylinders being mechanically inter-connected, thus forming a second group and the mechanical connection means of this latter group comprising at least one conjugation rod 8 which is parallel to the axis of the machine and is located externally of the drive cylinders synchronization means is provided between the two groups so that when the two opposed drive pistons which work in one of the drive cylinders perform their outward stroke (work stroke) the two opposed pistons which work in the other drive cylinder perform their inward stroke (compression stroke). Each of the outer drive pistons is connected to a compensator piston 27 2  working in a fixed compensator cylinder 26 2  and operable to compress air in the compensator cylinder during the inward movement of one of the outer drive pistons thereby creating in the fixed compensator cylinder a resistance to the movement during the inward stroke of the corresponding outer drive piston in order to avoid the presence of compression stresses in the conjugation rod or rods A number of modications are described. Compensator cylinders may be arranged around a compressor cylinder with their axes parallel to the axis of an engine cylinder.
Patent GB-348480-A (GB)
Title: Manufacture of hydroxyacylaminoarsenobenzenes
IPC: C07F9/74
Filed: 1930-08-15
Abstract: Hydroxyacylamino-arsenobenzenes are prepared by condensing an arsine with an arsenoxide or dichlorarsine, one or both components containing an hydroxyacylamino group.  Examples are given of the interaction of 4-glycollylaminophenylarsenoxide with 3-amino-4-hydroxyphenylarsine, and 4-glycollylaminophenylarsine with 3-amino-4-hydroxyphenylarsenoxide.  Hydroxyacylaminophenylarsines are obtained by reducing the corresponding arsinic acid with zinc dust in the presence of mineral acid.  Thus, 4-glycollylaminophenylarsine is prepared by adding concentrated hydrochloric acid to a methyl alcohol solution of the corresponding arsinic acid while introducing nitrogen and cooling to avoid saponification of the acyl group. Hydroxyacylaminodichlorarsines are formed when the corresponding arsenoxide is treated with concentrated hydrochloric acid.
Patent GB-264132-A (GB)
Title: Improvements in internal combustion engines of the sleeve valve type
IPC: F01L5/10
Filed: 1926-10-04
Abstract: 264,132. Haltenberger, J. Jan. 9, 1926, [Convention date]. Valve gear.-A sleeve valve 17 controlling inlet and exhaust receives a combined reciprocating and rotary movement from a wobble crank 21, connecting-rod 22, and lever 25. The lever 25 has a ball-joint fulcrum 30, and is connected by similar joints 24, 28 to the rod 22 and the valve, the lever being free to slide through the joint 28. In a modification, the crank 21 is arranged above the lever 25; also the upper end of the sleeve valve may work between the cylinder and a depending cylinder head. Regulating.-The fulcrum 30 of the lever 25 is eccentrically mounted to allow adjustment either for inaccuracies in the valve setting or for varying the valve timing. For the former purpose, there are preferably two eccentric members 35, 37 which may be separately rotated, one for varying the vertical, and the other the horizontal adjustment of the valve; the eccentric members are secured in the adjusted position by a clamping- plate 40. For timing adjustments, a single eccentric mounting for the fulcrum 30 is sufficient, and is arranged so that its adjustment varies the time of closing of the inlet ports and the time of opening of the exhaust ports. The eccentric mountings 51, Fig. 12, of the valve levers of several cylinders may have their actuating arms 50 connected by a rod 52 which may be controlled automatically by a piston 55<a> subjected to the suction in the inlet manifold 58, or by a piston 55 acted on by the pressure of the lubricant, or by both. The rod 52 is also acted on by a spring 54<b>, the position of which may be shifted by a lever 59 and a hand-actuated rod 59<a>, which gives a manual control over the timing. Instead of adjusting the fulcrum of the valve lever, variations in timing may be obtained by means of a slide 65, Fig. 9. which may be made in one piece or in two halves as shown, and is moved up or down to control the port openings. The slide 65 may be actuated by eccentric pins 66 rotated by arms 68: or it may be operated by a rod extending down the cylinder and connected to an eccentric mounting such as 51., Fig. 12. which may be connected to the rod 52 as described above.
Patent GB-795427-A (GB)
Title: Apparatus for rolling up square mesh wire netting into rolls
IPC: B21F33/00
Filed: 1956-08-10
Abstract: 795,427. Reeling wire netting. SCHMID, O. Aug. 10, 1956 [May 17, 1956], No. 24535/56. Class 83 (4). Apparatus for rolling up square-mesh wire netting includes two rotating bodies, the axes of which are parallel and transverse to the direction of travel of the wire netting and are spaced such a distance that the wire netting forms a cylindrical roll supported by, and contacting, both bodies of which the second in the direction of travel of the wire netting carries peripherally disposed entraining means for engaging the wire netting. Wire netting 2 produced by interweaving flat wire helices passes from a machine for so forming the netting over guide rollers and under a roller 18 on a pivoted arm to a feed roller 5 peripherally studded with radial pins 6. Thence the netting 2 is fed to bodies of revolution 26, 261, rotating at a peripheral speed greater than that of the feed roll 5, which roll the netting up into a roll 28, a pair -of rollers 29, on pivoted arms 30 which may be raised by a hand-operated arm 31, resting on said roll 28 to assist in the formation thereof. The bodies of revolution 26, 26<SP>1</SP> comprise spaced discs 26, 26<SP>1</SP> secured on shafts 20, 21, the discs 26 having a smooth periphery and the discs 26<SP>1</SP> having peripheral cross-pieces 27 of an axial length less than that of diagonal width of each mesh. The feedroller 5 is driven from a shaft 12 through a clutch 9, 10 which is engaged by a lever 11 rocked by a cam 17 on the pivoted arm of the roller 18 so that the roller 5 is stopped when the supply of netting thereto drops. The shafts 20, 21 of the bodies of revolution are driven from the feed roller 5. The bodies of revolution may be formed as rollers, the second one being studded with means to engage the mesh of the wire netting.
Patent GB-318889-A (GB)
Title: Improvements in and relating to internal combustion engines
IPC: F02M59/30
Filed: 1929-08-10
Abstract: 318,889. Allgemeine Elektricitõts- Ges. Sept. 11, 1928, [Convention date]. Cam-actuated pumps; stroke, varying; timing- devices.-In Diesel engines operating with airless injection, the cam mechanism actuating the fuel pump is adjusted so as, not only to retard the commencement of injection as the speed decreases, but also to bring into action a steeper part of the cam, thereby counteracting the reduced velocity of the fuel-pump plunger. The termination of the period of injection may also be adjustable. Fig. 5 shows the pump plunger t<1> actuated by a slide v carrying a roller v<2> engaging the cam t<2>, the slide being adjusted farther from the cam as the speed decreases, by a cam z actuated by a handle y so as to raise a lever v<1>. The injection is terminated by the opening of the by-pass or suction valve x by means of connections w, w<2>, and this may be adjusted by an eccentric mounting w<1> of the lever w<2> adjustable by a handle x<1>. The handle y and x<1> may be connected together.
Patent GB-259569-A (GB)
Title: Improvements in or relating to lasting machines for veldtschoen
IPC: A43D113/00
Filed: 1926-10-05
Abstract: 259,569. United Shoe Machinery Corporation, (Assignees of Eppler, A.). Oct. 6, 1925, [Convention date]. Lasting.-In a machine for lasting veldtschoen a lasting tool 6 co-operates with a reciprocated work support 20 for pressing the out-turned margin of the upper against the margin of the sole, the margins having been previously cemented. Both manual and power means are provided, for reciprocating the support, the power means being normally disconnected. The operator is intended to hold the work with the sole margin at the toe end resting on the support, to manually raise the support; perform similar operations on either side of the toe; then engage the power means to complete the remainder of the sole periphery. Preferably, the tool 6 is heated electrically. Its upper engaging surface 114, is ribbed except at the end, which is left smooth to facilitate the feed. The tool has an arcuate shank, adjustable to vary its position. The support 20 is similarly adjustable and is mounted on a vertical plunger 28. The manual means for raising the plunger comprise a treadle 48 linked to an arm 42 actuating a double cam 36 pivoted at 40 and engaging a roller 34 on each side of the plunger. A rubber buffer 33 prevents the parts 20, 6 contacting when no work is interposed. When it is desired to operate the plunger 28 by power, a treadle 60 is depressed, links 63, 72 then swinging an arm 74 into line with plungers 76, 80. The plunger 80 is constantly reciprocated by an eccentric 86. When the arm 74 is swung into operative position, the upward thrust of the plunger 80 is communicated to the plunger 76, the reduced upper end 96 of which carries a stout spring 100. This spring is confined between adjusting nuts 102 and a sleeve 98 in which are slots engaging the ends of a pin 104 passing through the member 96. The upper end of the sleeve 98 abuts against the bored end of the plunger 28, this construction providing a resilient element between the plungers 80, 28. The operator may vary the power stroke of the sole support by partially depressing the treadle 48 while maintaining the treadle 60 depressed. The treadles are adjacent so that only one foot need be used.
Patent GB-1512427-A (GB)
Title: Wire for steel-wool production
IPC: B23P17/06
Filed: 1975-06-09
Abstract: 1512427 Wire: steel wool ARBED-FELTEN & GUILLEAUME DRAHTWERKE KOLH GmbH 9 June 1975 [8 June 1974] 24667/75 Heading E1K A wire suitable for conversion to steel wool has a cross-section 1 with a head portion having a substantially flat upper surface and a foot portion generally in the form of a trapezium tapering away from the head portion. The lower surface may be flat or may have a longitudinal concavity 3 and rounded lower edges 2.
Patent GB-1016704-A (GB)
Title: Fluid bearings
Inventor: DOBSON PETER WARDLE
IPC: F16C32/06
Filed: 1962-06-27
Abstract: 1,016,704. Bearings. BRITISH IRON & STEEL RESEARCH ASSOCIATION. June 27, 1963 [June 27, 1962], No. 24687/62. Heading F2A. A fluid bearing for guiding and supporting moving strip material 11, comprises a member 12 having a perforated surface 13 from which fluid discharge takes place, which is mounted for displacement in at least one plane transverse to the path of movement of the strip by a fulcrum pin 16. The strip passes edge guide rollers 14 before performing a 180 degree change-in-direction over the bearing. The bearing may be mounted for universal movement.
Patent GB-1058987-A (GB)
Title: Microsockets
IPC: H01R12/72
Filed: 1964-06-16
Abstract: 1,058,987. Edge connectors for printed circuit boards. TOKYO SHIBAURA ELECTRIC CO. Ltd. June 16, 1964 [June 22. l963]. No. 24903/04. Heading H2E. A printed circuit edge connector comprises an outer frame member 5 having a plurality of contact receiving slots on opposing walls which extend into holes in the base and an inner frame member 1 with a plurality of corresponding slots, contacts 8 being mounted in each pair of corresponding slots and the inner and outer frame members being bound together by adhesive lining the base of the latter.