baber/WOPTO huggingface dataset:
Patent GB-991537-A (GB)
Title: Plant growth influencing compositions containing chlorobenzoic acid derivatives
IPC: C07D295/192
Filed: 1964-02-04
Abstract: The invention comprises compounds of formula <FORM:0991537/C2/1> wherein A is -OX or -NR2, X being ammonium, alkyl or aralkyl (all of which may be substituted) and R being H or optionally substituted alkyl, aralkyl or aryl; alternatively, -NR2 may represent a heterocyclic radical. In examples, the parent acid (A = OH) is prepared by reduction of the corresponding trichloronitrobenzoic acid.  The esters are prepared by esterifying the nitro acid, followed by reduction, the amides by nitrating amides of 2,4,5-trichlorobenzoic acid followed by reduction.ALSO:Herbicidal compositions comprise 3-amino-2,4,5-trichlorobenzoic acid or metal or ammonium salts, esters or amides thereof, in admixture with a solid diluent or carrier or in admixture with water containing an emulsifying agent and/or an auxiliary solvent or in admixture with an organic solvent and an emulsifying agent capable of producing a stable emulsion when diluted with water. The invention comprises also a method of preventing undesired plant growth by use of one of the said compounds alone or in admixture with a solid or liquid diluent or carrier.
Patent GB-942084-A (GB)
Title: Improvements in or relating to fabrics
IPC: D04B21/00
Filed: 1961-02-08
Abstract: In a method of making a fabric using a warp knitting machine having a front bar and at least one back bar, yarn fed to the front bar is knitted and has a minimum potential shrinkage of 7% and the yarn fed to the back bar or bars, is laid in, and the fabric so produced is shrunk under such conditions that it has less than 15% stretch in both length and width directions.  The yarn is preferably composed of at least 50% by weight of linear polymeric fibres and the fabric is preferable stretched widthwise and overfed lengthwise whilst heated to a temperature of at least 200 DEG F.  Specification 911,282 and U.S.A.  Specification 2,810,281 are referred to.
Patent GB-511291-A (GB)
Title: Magnesium alloys
IPC: C22C23/02
Filed: 1938-02-15
Abstract: 511,291. Alloys. COMPAGNIE DE PRODUITS CHIMIQUES ET ELECTROMETALLURGIQUES ALAIS, FROGES, ET CAMARGUE. Feb. 15, 1938, No. 4694. Convention date, Feb. 16, 1937. [Class 82 (i)] Magnesium base alloys containing beryllium are treated in the molten state with zirconium. Beryllium and zirconium may each be present in an amount between 0.005 and 0.5 per cent. In an example, 0.025 per cent. of beryllium and 0.035 per cent. of zirconium are added to a magnesium base alloy containing 6 per cent. of aluminium, 3 per cent. of zinc and 0.3 per cent. of maganese.
Patent GB-1210401-A (GB)
Title: Improvements in and relating to butterfly valves
Inventor: HOUGHTON RONALD HENRY
IPC: F16K1/226
Filed: 1967-01-31
Abstract: 1,210,401. Valves; pipe and rod couplings. BOVING & CO. Ltd. 25 Jan., 1968 [31 Jan., 1967], No. 4718/67. Headings F2G and F2V. In a butterfly valve, the valve actuating spindle 15 engages two bored lugs 18 projecting from the valve closure member 12 and extends through one, and is located within the other of two bosses (13, Fig. 2, not shown), which bosses are formed integrally with and extend from a flange 10b of a bolting attachment 10 securable to a non-flanged pipe, not shown, the arrangement being such that when the valve is in its closed position, the valve member 12 lies substantially in the plane of the flange 10b and the need for a separate valve housing is dispensed with. To enhance sealing, a sealing ring 17 may be located in a recess in the flange portion or, alternatively, may be located in the periphery of the valve member and adapted to engage a ring disposed in a recess in the flange portion (Fig. 3, not shown). In a modification, not shown, the sealing ring may be disposed within the abutting bolting attachment 11 or may be formed by gasketing sandwiched between the bolting flanges.
Patent GB-564923-A (GB)
Title: Improvements in collapsible push-chairs
IPC: B62B7/02
Filed: 1943-03-23
Abstract: 564,923. Collapsable push-chairs. METCALFE, E. R. March 23, 1943, No. 4744. [Class 108 (i)] A collapsable push-chair comprises two open frames 1, 2 pivoted together at 8, being each covered. with fabric 3 and forming the back and seat respectively, which are retained in the position of use by stays 9 and can be collapsed towards each other. The body is supported by wheels 11 mounted on an axle 10 carried below the pivots 8 in the frame 1, to the bottom strip 16 of which is pivoted a handle in two parts 12, 13, jointed together to allow of collapsing, overlapping metal plates of the joint being locked in the position of use by spring bolts 24, Fig. 4, provided with releasing members 27. The forward edge of the seat is connected by pin-and-slot 17, 18, to the handle part 12 so that the handle and body parts may all collapse together.
Patent GB-538972-A (GB)
Title: Improvements in or relating to type-bar mechanism for typewriters
IPC: B41J7/02
Filed: 1940-03-14
Abstract: 538,972. Typewriters. JARDINE, Ltd., J., and JARDINE, Sir E. March 14, 1940, No. 4775. [Class 100 (iv)] Type-lever actions. An extension of the keylever engages a depending lever which is arranged below the key-lever and has the lower end connected by a link to a lever which is connected to a type-lever. In the action shown in Fig. 1 a depending tail C on the key-lever A is provided with a pin C<SP>1</SP> co-operating with a camslot D' in a lever D which depends from a pivot E and is connected by links F, H and a lever G to the type-lever J. The velocity of the typelever relatively to the key-lever depends on the shape of the cam-slot. To provide for uniform depression of the keys in different banks, the associated levers D are provided with cam-slots of different shapes. The levers D may be pivoted on a straight rod E. The levers G are preferably vertical and are pivoted on straight rods K<SP>1</SP> . . . K<SP>3</SP>, the upper and lower ends of the levers having inwardly and outwardly directed cranked parts for connection to the links H, F. The levers D may be formed with extensions D<SP>2</SP> for operating a universal bar.
Patent GB-490606-A (GB)
Title: Improvements in or relating to ports of furnaces
IPC: F23D99/00
Filed: 1937-02-17
Abstract: 490,606. Gas -fired furnaces. DORMAN, LONG, & CO., Ltd., and MOODY, C. Feb. 17, 1937, No. 4801. [Class 51 (i)] The gas ports of open hearth and like furnaces are provided with a water jacket 10 of circular cross-section extending the whole or part of the length of the port and completely surrounding it, the inner end of the jacket being closed by an annular channelled nose piece 14 secured at 16, 17 to the jacket. The jacket has an internal lining 30 of refractory material and is enclosed by brickwork 18. Water is supplied to the jacket through a number of pipes 32 which extend into the jacket and terminate near the nose at spaced intervals. The pipes may be arranged helically. Water is discharged from the jacket through the outlet 35. The lower portion of the outer end of the jacket is cut away to provide an inlet for gas from the uptake 25.
Patent GB-252436-A (GB)
Title: Cloth-operated resets for measuring machines
IPC: G01B5/04
Filed: 1925-02-21
Abstract: 252,436. Thornton, A. A.., (Vanderveld, A.). Feb. 21, 1925. Measuring.-In a machine of the kind described in Specification 194,891 the brake 58 for looking the indicating mechanism at the completion of an operation is released, and the indicating mechanism is consequently reset by the cloth C on its insertion pushing back a level 67, unless the resetting has been previously effected manually. The brake 58 is pivoted at 56 and connected by a link 64 with a three-armed lever 60 to which is pivoted at 75 a member 74 notched at 79 to receive a pin 71 on the lever 67. The member 74 and lever 67 are connected by springs 77, 72 to the lever 60 which in turn is connected by a spring 66 to the frame work 31. At the end of a measuring operation a thumb lever on the sleeve 16 is depressed to move the arm 22 into the position shown in Fig. 6 and thus brake the member 54 geared to the indicating mechanism. The arm 22 is returned to the position shown in Fig. 4 by a spring 24 but the brake is retained in its " on " position due to the toggle arrangement of the link 64 and the arm 63 of the lever 60. After other thumb levers have been depressed to notch the cloth C and to lower the gripper roller from the measuring roller 36, the cloth is removed and the lever 67 is pulled by the spring 72 from the position shown in Fig. 6 to that shown in Fig. 4, the pin 71 engaging the notch 79 ready to withdraw the brake 58 when the lever 67 is moved by hand or by the cloth C on insertion. The table 7 extends a distance in front of the casing front 6, whereby the entry of cloth between the measuring and gripper rollers is facilitated.
Patent GB-696630-A (GB)
Title: Manually operated shears for cutting sheet metal and the like
IPC: B23D29/02
Filed: 1952-02-25
Abstract: 696,630. Shearing. KALTHOFF, K. H. Feb. 25, 1952, No. 4931/52. Class 83 (iv). A hand-operated portable shear comprises a Z-shaped frame 4 mounted on rollers 11 and supporting co-operating shearing rolls 5 on adjustable shafts 6, 7 and an edge gauge 9 on a rod 8. The upper roll is serrated to feed the sheet 14 or the shear, and is rotated from a hand lever 1 through ratchet gearing. After completion of a cut the hand lever is locked to the roll 5 to allow reversal to free the sheet.
Patent GB-211897-A (GB)
Title: Improvements in devices for guiding the propeller water of ships
IPC: B63H5/16
Filed: 1924-02-26
Abstract: 211,897. Hass, H. Feb. 26, 1923, [Convention date]. Addition to 199,003. Screw propellers.-Guide. surfaces for screw propellers as described in the parent Specification are modified for use in multiple screw installations and are formed integrally with the shaft brackets. In a twin-screw boat, each shaft bracket 1, Fig. 1, is formed with a curved arm portion or fin 2 immediately in front of the propeller, the curve being directed oppositely to the propeller direction 3 for the purpose of suitably guiding the water to the propeller. When the curve is very marked, slots may be provided in the fin, or the fin may be divided and formed' with two curved parts 10, 9, Fig. 5. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the provision of additional curved pins 19, 20, Fig. 9 (Cancelled), which may be formed on the boss of the bracket extending outwardly therefrom and which coact with the main fin 18 in guiding the water. This subject-matter does not appear n the Specification as accepted.
Patent GB-397503-A (GB)
Title: Apparatus for use in coating or covering seed grain with fungicide
IPC: A01C1/08
Filed: 1932-02-19
Abstract: 397,503. Treatment of grain. KIRKWOOD, W., Queenswell Lane Works, Forfar. Feb. 19, 1932, Nos. 4948, 7244, and 15037. [Class 58.] Apparatus for coating seed grain with fungicide comprises a rotary drum 1 provided on its inner surface with a number of longitudinally extending shelves 2 comprising radial outer portions 2 and non-radial inner portions 21 so as to constitute scoops. The drum is mounted on a spindle 3 mounted in bearings 5, 51 on a frame 6, a crank handle 9 being provided at one end of the spindle. The bearing 5 is hinged to the frame at 14 and the bearing 5<1> at the handle end is constituted by a pair of arms forming a fork so that the drum may be swung upwards about the hinge to discharge the treated seed a catch 16 being provided to maintain the handle end of the spindle in raised position. A hinged or removable door 11 is provided on the cylindrical side of the drum for the introduction of the seed grain and fungicide and a discharge door 12 at the end of the drum. A lever frame, pivoted near the hinge 5, may be provided to facilitate the lifting of the drum. In a modification an openended drum with stirring scoops and inclined at a slight angle to the horizontal, is mounted to rotate within a fixed drum and is continually fed with grain from a hopper and shoot secured to the fixed drum at its upper end ; fungicide is fed in the desired amount through openings in an exchangeable plate fitted to an opening on a small drum secured at the end of the rotary drum, an arm sweeping the fungicide on to the seed as it flows into the drum : the treated seed discharges through upper and lower vertically slidable doors so that both the discharge aperture and the depth of seed in the drum may be controlled.
Patent GB-1068918-A (GB)
Title: Improvements in and relating to a method and apparatus for measuring the channel separation between two stereophony channels
IPC: H04S7/00
Filed: 1965-02-05
Abstract: 1,068,918. Measuring channel separation. VAN DER HEEM N. V. Feb. 5, 1965 [April 13, 1964], No.5042/65. Heading G1U. [Also in Division H4] In a method of determining the channel separations between two stereophony channels in for example a stereo audiofrequency amplifier, or the stereo decoder of a FM receiver, a signal with a first frequency (say 1000c/s) is applied to the first stereophony channel 1, a signal with a second frequency say 400c/s is applied to the second channel 2 and frequency selective voltmeters are connected to the outputs of the two channels. The input signals to the two channels are adjusted so that equally strong output signals result, after which the voltmeter sensitivities are increased to equal extents and their connections to the two channels exchanged. Each meter now gives an indication of the related channel separation.  In the first step of adjusting the input signals, these are passed via equally adjusted attenuators (3 or 4) through frequency selective filters 7 or 8, amplifiers 9 or 10, and rectifiers 11 or 12 to the appropriate meter 13 or 14. The input signals at the two frequencies are adjusted to give full  scale deflections on the meters. The switch 5-6 is then set to its opposite position, so that the proportion of each signal which is appearing on the other channel will now be shown on the meters (allowance being made for the fact that the attenuators are now in circuit). Appropriate channel controls may be adjusted to produce the desired channel separation.
Patent GB-575443-A (GB)
Title: Improvements in or relating to methods of detecting and/or locating by electrical means masses of electrically conducting or magnetic material
IPC: G01V3/10
Filed: 1943-03-29
Abstract: 575,443. Locating conductors ; temperature compensation. CINEMA-TELEVISION, Ltd., and WEST, S. S. March 29, 1943, Nos. 5059 and 5060. [Class 37] The proximity of masses of conducting or magnetic material is detected by a balanced bridge circuit with a search coil in one arm, temperature changes being compensated by the use of auxiliary non-inductive coils. The search coil may comprise the degaussing coil provided on a ship as a safeguard against magnetic mines. As shown, two arms 3, 4 of the bridge comprise the tapped secondary of a transformer fed from an electronic oscillator, alternator or the like. The other two arms of the bridge comprise a dust-core coil 2 of variable inductance, and the search coil 1. Associated physically with the search coil 1 is a non-inductive coil 5 which has the same resistance-temperature characteristic as the coil 1 and is connected in series with the coil 2. Another non-inductive coil 6 is associated with the coil 2 and connected in series with the coil 1 and with a variable resistance 7. The bridge is balanced by the adjustable elements 2, 7 ; and when the search coil approaches metal objects, the bridge is unbalanced and voltages appear across the output terminals 10, 11 which may be taken to an amplifier feeding an indicator. In a modification, Fig. 2 (not shown), the driving voltage is applied across a tapped resistance which replaces the input transformer. In this case the coil 2 need not be variable, but a variable resistance is included in one branch of the tapped resistance.
Patent GB-577104-A (GB)
Title: Improvements in methods of and apparatus for operating h.p.m.v. lamps
IPC: H01J61/52
Filed: 1943-03-29
Abstract: 577,104. Discharge lamps. GENERAL ELECTRIC CO., Ltd., FRANCIS, V. J., NELSON, E. H., and POWER, E. B. March 29, 1943, No. 5072. [Class 39 (i)] The whole or the greater part of a HPMV lamp 1 is enclosed in an electric oven 12, and the latter can be operated from the supply mains to give two different degrees of heat as well as a switched-off con dition. The greatest degree of heat is used when the lamp is started up from cold in order to bring it into full operatior rapidly. The lesser degree is used to keep the lamp simmer ing during a temporary inter ruption of working. During normal working, the oven is switched off and may either be removed from around the lamp or a window may be provided to permit useful radiation to issue from the lamp.
Patent GB-489478-A (GB)
Title: Improvements in alloys and pistons formed from same
IPC: C22C38/16
Filed: 1938-02-18
Abstract: Cast-iron alloys especially for the pistons of internal-combustion engines contain (a) 1-2 per cent of carbon, 0,5-1,5 per cent of manganese, 0,5-1,5 per cent of silicon, 1,5-3,5 per cent of copper, up to 0,16 per cent of sulphur, and up to 0,12 per cent of phosphorus, or (b) 1,4-1,6 per cent of carbon, 0,6-1 per cent of manganese, 0,9-1,3 per cent of silicon, 0,08-0,15 per cent of chromium, 2,5-3 per cent of copper, up to 0,1 per cent of phosphorus, and up to 0,08 per cent of sulphur.  The alloys may be sand-cast, heated to 900 DEG  C. for 20 minutes, cooled in air in 30 minutes to 649 DEG  C., reheated to 760 DEG  C. and kept thereat for 1 hour, cooled in 1 hour to 538 DEG  C., cooled in air to room temperature, and machined to provide a thin-walled piston which may be thinly electroplated with cadmium by the following method. The castings are electrolytically cleaned in a solution of soda-ash, trisodium phosphate, and caustic potash maintained at 93-98 DEG  C., an iron tank being used as anode, rinsed, dipped in commercial muriatic acid, rinsed, dipped in 10 per cent soda-ash solution, rinsed, and plated in a bath consisting of sodium cyanide, cadmium oxide, caustic soda, and corn-syrup maintained at 38-43 DEG  C., 99 per cent cadmium anodes being used.  Reference has been directed by the Comptroller to Specification 449,983.
Patent GB-556763-A (GB)
Title: Improvements in or relating to the drying of smooth, non-fibrous webs which are subject to shrinkage during the drying thereof
IPC: B29D7/00
Filed: 1942-04-17
Abstract: 556,763. Drying non-fibrous webs. BRITISH CELLOPHANE, Ltd. April 17, 1942, No. 5160 Convention date, April 19, 1941. [Class 34 (i)] To prevent transverse shrinkage of a gel-regenerated cellulose or other wet non- fibrous web 99 during drying by passing it over heated rollers 25, the edges of the web are folded over thin tenter belts 27 and gripped between the belts and the rollers. After passing between squeeze rollers 23, 24, the web is held at each edge between a tenter belt and a folder belt 28 which are twisted to turn the edge of the web around and under the tenter belt as it contacts with the first upper drying roller. Guides 29 control the lateral positions of the tenter belts, and the heating rollers may be formed with shallow grooves preventing the belts from being pulled inwards. The wet web may be shirred to allow for longitudinal shrinkage by passing it from a transfer belt to the folder belts at a linear speed greater than that of the tenter belts, or by passing the web to the tenter belts while they are passing around circular supports of small diameter towards a straight span of the belts. On leaving the heated rollers, the edges of the web may be removed by rotary cutters 38. Specifications 211,162, [Class 34 (i)], and 211,446, [Class 15 (ii)], are referred to
Patent GB-1492190-A (GB)
Title: Steering system
IPC: B62D5/097
Filed: 1975-02-06
Abstract: 1492190 Vehicle steering systems TRW Inc 6 Feb 1975 [25 Feb 1974] 5185/75 Heading B7H A vehicle steering system 100, Fig. 7, includes two independent fluid control systems each comprising a fluid controller 160 or 162 having a flow metering mechanism and a valve for controlling fluid flow to a steering cylinder 208 or 224, the fluid controllers 160, 162 being operably coupled through respective couplings 152, 154 to respective fluid motors 134, 138 connected in parallel across the working ports 108, 110 of a further fluid controller 102 having a steering-wheel operated input shaft 112. The steering system illustrated in Fig. 7, is said to allow vehicle steering in the event of one of the fluid control systems becoming inoperative, and to allow manual steering in the event of failure of the three fluid supply pumps 114, 180, 194. In normal operation, the fluid controller 102 supplies differential fluid flows to the fluid motors 134, 138 so as to cause the fluid controllers 160, 162 to supply differential fluid flows to the steering cylinders 208, 224 in accordance with the differential effective crosssectional areas thereof. The fluid controllers 102, 160, 162 may each take the form of the fluid controller 10 depicted in Fig. 1. The fluid controller 10 comprises working ports 34, 36 and an input shaft 16 coupled to an axiallymovable spool valve 37 operably connected by a wobble shaft 39 to the inner gear 20 of a geroter metering mechanism. Axial movement of the spool valve 37 causes compression of a coil spring 76.
Patent GB-419187-A (GB)
Title: Improvements in or relating to centrifugal separators
IPC: B04B1/08
Filed: 1934-02-16
Abstract: 419,187. Centrifugal machines. HOOD, A. M., 1001, Hume-Mansur Building, Indianapolis, Indiana, U.S.A. Feb. 16, 1934, No. 5208. [Class 23.] Liquid mixture is supplied near the axis of the bowl of a centrifugal separator, the parts being arranged so that all flow between the liner discs passes outwardly, and the separated liquids pass to different outlets. The bowl B has a cylindrical wall 7 secured to the bottom plate 5 by the nut 8, and its neck is provided with two outlets 17, 40<11> through which the separated liquids are discharged after passing over the annular weirs 45, 41. The base 27 of a supplementary bowl SB, with perforations 29 in its wall, is arranged above the lower ends of the feed passages 25<1> in the stem 6. The nest of discs D is supported between the guard disc D<1> and the flange D<11>. Each disc D has an eye 31 and intermediate perforations 32 with guard lips 33, and is separated from the next disc by a spacer block 34. The guard disc D <1> has an eye 31, but no other perforation, and the flange D<11> has no eye. A bell 40 at the top of the bowl separates the paths of the light and heavy liquids. The liquid mixture is supplied from the pipe 101 which is connected to the pipe 98 through a packing gland 99 carried by the bracket 100 on the separator casing W. The mixture passes from the pipe 98 into the feed pipe of the separator through an adjustable valve 108 which can be held in a set position by a screw 113. The head 110 of the valve may have indicating graduations marked on it. From the feed pipe the mixture passes between the bases 5, 27 to the periphery of the bowl. After passing through the openings 29 and eye 31 of the guard disc D<1> the lighter separate moves upwards and outwards until it passes under the bell 40 to the outlet 40<11>. The heavy separate passes outside the bell to the outlet 17. The bowl can be modified as shown in Fig. 2 to act as a clarifier. A ring 61 which may be lightly perforated is used to block the annular space between the wall 7 and the edge of the bowl SB; the bell 40 and the weirs 41, 45 are removed, and a thimble T is inserted to close the outlet 17.